https://wiki.kerbalspaceprogram.com/api.php?action=feedcontributions&user=Euracil&feedformat=atomKerbal Space Program Wiki - User contributions [en]2024-03-28T23:03:41ZUser contributionsMediaWiki 1.29.0https://wiki.kerbalspaceprogram.com/index.php?title=File:Kerbin_v0_21.jpg&diff=22613File:Kerbin v0 21.jpg2013-07-26T00:06:29Z<p>Euracil: Kerbin from space, seen in v0.21.</p>
<hr />
<div>Kerbin from space, seen in v0.21.</div>Euracilhttps://wiki.kerbalspaceprogram.com/index.php?title=Kerbin&diff=22408Kerbin2013-07-25T04:38:14Z<p>Euracil: Added v0.21 changes to Kerbin.</p>
<hr />
<div>{{:Kerbin/Data}}<br />
<br />
'''Kerbin''' is the home planet of the [[Kerbal]]s, the location of the [[Kerbal Space Center|Space Center]], and the main focus of [[Kerbal Space Program]]. It is the [[w:Earth|Earth]] analog for the game. It has two [[moon]]s, named '''[[Mün]]''' and '''[[Minmus]]'''.<br />
<br />
Kerbin is the third planet in [[orbit]] around the star [[Kerbol]]. It is the third largest planet (after [[Jool]] and [[Eve]]) and the fourth largest celestial object around Kerbol (with [[Tylo]], a moon of Jool, being slightly larger).<br />
<br />
Reaching a stable orbit around Kerbin is one of the first milestones a player might achieve in the game. Achieving such an orbit with a fuel-optimal ascent<ref>A fuel-optimal ascent is one which (a) minimizes velocity losses to gravity and [[atmosphere|atmospheric drag]] and (b) launches eastward (toward the 90 degree heading) to gain 174.5 m/s of orbital velocity for free, thanks to Kerbin's rotation.</ref> requires a [[delta-V]] of ≈4500 m/s,<ref>See [http://forum.kerbalspaceprogram.com/showthread.php/24017-Least-delta-v-to-orbit this challenge on the forum] and a popular [http://i.imgur.com/CEZS1.png Kerbin delta-V chart]</ref> the second largest of all celestial bodies with a solid surface after [[Eve]]. For many interplanetary missions, this represents over half of the flight's total delta-V requirement. This is also true of Earth-based interplanetary spaceflights, leading one observer to remark that:<br />
{{Quote|If you can get your ship into orbit, you're halfway to anywhere.|Robert Heinlein|quoted on page 194 of ''A Step Farther Out'' by Jerry Pournelle}}<br />
<br />
== Topography ==<br />
[[File:Kerbin_heightmap.jpg|thumb|left|Topographical representation of Kerbin's surface as of .18.2. Click for high resolution. by Zeroignite]]<br />
Kerbin has a roughly equal distribution of surface liquid water and solid land, with polar icecaps and scattered deserts. There are mountains exceeding 4 km in height, with the tallest peak being just under 4044 m in altitude.<br />
<br />
<br />
====Craters====<br />
[[File:KerbinCraterElevation.jpg|thumb|left|Terrain model centered on one of Kerbin's most pronounced craters]]<br />
Unlike other bodies in its system, Kerbin has few visible craters. This could be attributed to many causes. The environment would cause erosion of many geological features. Also due to its atmosphere, and large moon, fewer meteorites would make it to its surface. However, some geological formations would lead one to believe Kerbin has been subjected to violent collisions in the past. It has two features that appear to be impact craters, separated coincidentally by nearly 180 degrees. The least eroded, and presumably youngest, of the two (both are in excess of 100 km diameter) is located along the coastline. The uplift is easily visible as a series of islands and it has a central peak poking out of the water. The other, and older of the two, is located near the prime meridian in the northern hemisphere. It is more easily missed, but its uplift rims are visible and it has a central rebound peak.<br />
<br />
== Atmosphere ==<br />
<!-- SPECULATION: Kerbin has an atmosphere of unknown composition, though because Kerbin has plants and animals, it can be assumed there is O<sub>2</sub>, N<sub>2</sub>, and CO<sub>2</sub>. -->Kerbin's [[atmosphere]] contains oxygen and extends to roughly 69,078 meters. Its atmosphere becomes exponentially less dense as altitude increases (with a scale height of 5 km).<ref>{{forum link|threadID=16000|threadName=&#91;KGSS&#93; Examining Kerbin's atmosphere}}</ref> In general, the atmospheric pressure on Kerbin, at an altitude expressed in meters, is:<br />
<br />
: <math>p_k = e^{-altitude/5000}</math><br />
<br />
The thickness of Kerbin's atmosphere makes it suitable for [[aerobraking]] and using [[parachute]]s, useful for saving on fuel when spacecraft return to Kerbin. Note that debris is not affected by air resistance above approximately 10 km, so spent stages may continue in a stable orbit even if they are going through thick atmosphere that would stop an active craft (0.19). Crafts will experience re entry and supersonic air effects as of 0.19. This however will not damage or burn it.<br />
<br />
The following table gives approximation of terminal velocities at different Kerbin altitudes. These are also the velocities at which a ship should travel for a fuel-optimal ascent from Kerbin, given the game's model of atmospheric drag.<ref>http://forum.kerbalspaceprogram.com/showthread.php/6664-Mini-challenge-max-altitude-with-this-supplied-spacecraft?p=100912&viewfull=1#post100912</ref><br />
<br />
{| class="wikitable"<br />
|-<br />
! Altitude (m) !! Velocity (m/s)<br />
|-<br />
| 75 || 107<br />
|-<br />
| 1000 || 114<br />
|-<br />
| 2000 || 124<br />
|-<br />
| 3000 || 136<br />
|-<br />
| 4000 || 152<br />
|-<br />
| 5000 || 169<br />
|-<br />
| 6000 || 188<br />
|-<br />
| 7000 || 209<br />
|-<br />
| 8000 || 232<br />
|-<br />
| 9000 || 256<br />
|-<br />
| 10000 || 281<br />
|-<br />
| 12500 || 348<br />
|-<br />
| 15000 || 419<br />
|-<br />
| 20000 || 566<br />
|-<br />
| 32000 || 2250<br />
|}<br />
<br />
== Orbits ==<br />
[[File:Screenshot39.png|thumbnail|left|A Stayputnik Orbiter]]<br />
[[w:Geosynchronous_orbit|Geosynchronous orbit]] is achieved at an altitude of {{OrbitAltitude | period_s=21600 | mass_kg=5.29157926281091e22 | radius_km=600}} and a speed of {{sigfigs|{{OrbitVelocity | period_s=21600 | mass_kg=5.29157926281091e22 | radius_km=600 |suffix=}}|7}} m/s. From a 70 km low equatorial orbit, the periapsis maneuver requires 676.5 m/s and the apoapsis maneuver requires 434.9 m/s. A [[w:semi-synchronous_orbit|semi-synchronous orbit]] with an orbital period of 1/2 of Kerbin's rotation period (3 hours or 10800 seconds) is achieved at an altitude of {{OrbitAltitude | period_s=10800 | mass_kg=5.29157926281091e22 | radius_km=600}} with an orbital velocity of<br />
{{sigfigs|{{OrbitVelocity | period_s=10800 | mass_kg=5.29157926281091e22 | radius_km=600 |suffix=}}|7}} m/s.<br />
<br />
The [[w:Hill_radius|Hill Sphere]] (the radius around the planet at which moons are gravitationally stable) of Kerbin is 136 185km, or roughly 227 Kerbin radii.<br />
<div style="clear:left;"></div><br />
<br />
== Interplanetary Travel ==<br />
<br />
From the lowest stable orbit around Kerbin (70 km), the amount of delta-V needed to reach the orbits of other celestials is as follows:<br />
<br />
{| class="wikitable"<br />
!Body<br />
!Delta-V<br />
|-<br />
| [[Mun]]<br />
| ~860 m/s<br />
|-<br />
| [[Minmus]]<br />
| ~930 m/s<br />
|-<br />
| [[Eve]]<br />
| ~1033 m/s<br />
|-<br />
| [[Duna]]<br />
| ~1060 m/s<br />
|-<br />
| [[Moho]]<br />
| ~1676 m/s<br />
|-<br />
| [[Jool]]<br />
| ~1915 m/s<br />
|-<br />
| [[Eeloo]]<br />
| ~2100 m/s<br />
|-<br />
| [[KEO]] (comparison)<br />
| ~1120 m/s<br />
|}<br />
<br />
== Reference Frames ==<br />
{{:Kerbin/RefFrame}}<br />
<br />
== Gallery ==<br />
<gallery><br />
NJ6qJ.jpg | A projection map of Kerbin, as of {{version|0.14.1|}} and before (including the old demo).<br />
Kerbin color.png | An accurate full-colour projection map of Kerbin as of {{version|0.14.2|}} to {{version|0.17.1|}}<br />
KerbinDeltaVMap.png | A map displaying the delta V needed from/to Kerbin<br />
Kerbin_mun_minmus.jpg | Kerbin, Mün and Minmus.<br />
Kerbin,_Mun,_and_Minmus.jpeg | Kerbin with its two natural satellites, the Mun and Minmus, seen from KEO. Minmus can be seen just above the horizon of Kerbin on the left side of the picture.<br />
kerbin map 800.gif | A topographic heightmap of Kerbin made with the ISA MapSat plugin<br />
Kerbinmun500550km.png | Kerbin and the Mun, barely visible from ~500,550,000m<br />
Kerbin ISA Topo.png | Topographical image of Kerbin '''from 0.17.1'''. The terrain is slightly different in the latest version.<ref>http://forum.kerbalspaceprogram.com/entry.php/247-A-Brave-New-World</ref><br />
Kerbin r0 1.png | An unmanned probe on escape trajectory, flying past Kerbin, Mün and Minmus<br />
KerbalPolar1.png | Kerbin's North Pole<br />
</gallery><br />
{{SpoilerBox<br />
|description=Spoiler images<br />
|content=<gallery><br />
Kermmunist_Launch_Site.png | The second launch site (currently unused).<br />
KEasterEgg.png | Kerbin from above with the Runway Easter Egg<br />
<br />
</gallery>}}<br />
<br />
== Changes ==<br />
;{{Version|0.21|}}<br />
*Terrain revised to produce more detailed and interesting landforms.<br />
;{{Version|0.19.1|}}<br />
*Fixed ladders on the fuel tanks near the launchpad.<br />
;{{Version|0.19|}}<br />
*New mesh for the launchpad and area (no launchtower anymore).<br />
*New mesh for the runway, with lights and sloping edges for rovers.<br />
;{{Version|0.18|}}<br />
*Terrain overhaul: Entire planet redo. Deserts, darker and greener grass, islands, darker ocean/water, snow capped mountains. Looks more realistic.<br />
*Several [[List of easter eggs|Easter Eggs]] added.<br />
*Airport added to island off of KSC coastline. (Not a launching point)<br />
;{{Version|0.17|}}<br />
* Improved atmosphere visuals. <br />
;{{Version|0.15|}}<br />
* [[Minmus]] added.<br />
;{{Version|0.14.2|}}<br />
* Much more varied and taller terrain added. Prior to this, some mountain ranges exceeded 600 m in height, but the tallest point was at an altitude of approximately 900 m.<br />
;{{Version|0.12|}}<br />
* [[Mün]] added.<br />
;{{Version|0.11|}}<br />
* Terrain overhaul, oceans became wet.<br />
;{{Version|0.10.1|}}<br />
* Atmosphere extended from ~34,500 m to ~69,000 m.<br />
;{{Version|0.7.3|}}<br />
* Initial Release<br />
<br />
== Trivia ==<br />
Kerbin's continents are derived from libnoise <ref> http://libnoise.sourceforge.net/examples/complexplanet/</ref>, though they have been increasingly modified with time.<br />
<br />
== Notes ==<br />
<references /><br />
<br />
<br />
{{Celestial Bodies}}<br />
[[Category:Celestials]]<br />
[[Category:Planets]]</div>Euracilhttps://wiki.kerbalspaceprogram.com/index.php?title=Kerbin&diff=21492Kerbin2013-07-11T07:43:12Z<p>Euracil: Fixing grammar</p>
<hr />
<div>{{:Kerbin/Data}}<br />
<br />
'''Kerbin''' is the home planet of the [[Kerbal]]s, the location of the [[Kerbal Space Center|Space Center]], and the main focus of [[Kerbal Space Program]]. It is the [[w:Earth|Earth]] analog for the game. It has two [[moon]]s, named '''[[Mün]]''' and '''[[Minmus]]'''.<br />
<br />
Kerbin is the third planet in [[orbit]] around the star [[Kerbol]]. It is the third largest planet (after [[Jool]] and [[Eve]]) and the fourth largest celestial object around Kerbol (with [[Tylo]], a moon of Jool, being slightly larger).<br />
<br />
Reaching a stable orbit around Kerbin is one of the first milestones a player might achieve in the game. Achieving such an orbit with a fuel-optimal ascent<ref>A fuel-optimal ascent is one which (a) minimizes velocity losses to gravity and [[atmosphere|atmospheric drag]] and (b) launches eastward (toward the 90 degree heading) to gain 174.5 m/s of orbital velocity for free, thanks to Kerbin's rotation.</ref> requires a [[delta-V]] of ≈4500 m/s,<ref>See [http://forum.kerbalspaceprogram.com/showthread.php/24017-Least-delta-v-to-orbit this challenge on the forum] and a popular [http://i.imgur.com/CEZS1.png Kerbin delta-V chart]</ref> the second largest of all celestial bodies with a solid surface after [[Eve]]. For many interplanetary missions, this represents over half of the flight's total delta-V requirement. This is also true of Earth-based interplanetary spaceflights, leading one observer to remark that:<br />
{{Quote|If you can get your ship into orbit, you're halfway to anywhere.|Robert Heinlein|quoted on page 194 of ''A Step Farther Out'' by Jerry Pournelle}}<br />
<br />
== Topography ==<br />
[[File:Kerbin_heightmap.jpg|thumb|left|Topographical representation of Kerbin's surface as of .18.2. Click for high resolution. by Zeroignite]]<br />
Kerbin has a roughly equal distribution of surface liquid water and solid land, with polar icecaps and scattered deserts. There are mountains exceeding 4 km in height, with the tallest peak being just under 4044 m in altitude.<br />
<br />
<br />
====Craters====<br />
[[File:KerbinCraterElevation.jpg|thumb|left|Terrain model centered on one of Kerbin's most pronounced craters]]<br />
Unlike other bodies in its system, Kerbin has few visible craters. This could be attributed to many causes. The environment would cause erosion of many geological features. Also due to its atmosphere, and large moon, fewer meteorites would make it to its surface. However, some geological formations would lead one to believe Kerbin has been subjected to violent collisions in the past. It has two features that appear to be impact craters, separated coincidentally by nearly 180 degrees. The least eroded, and presumably youngest, of the two (both are in excess of 100 km diameter) is located along the coastline. The uplift is easily visible as a series of islands and it has a central peak poking out of the water. The other, and older of the two, is located near the prime meridian in the northern hemisphere. It is more easily missed, but its uplift rims are visible and it has a central rebound peak.<br />
<br />
== Atmosphere ==<br />
<!-- SPECULATION: Kerbin has an atmosphere of unknown composition, though because Kerbin has plants and animals, it can be assumed there is O<sub>2</sub>, N<sub>2</sub>, and CO<sub>2</sub>. -->Kerbin's [[atmosphere]] contains oxygen and extends to roughly 69,078 meters. Its atmosphere becomes exponentially less dense as altitude increases (with a scale height of 5 km).<ref>{{forum link|threadID=16000|threadName=&#91;KGSS&#93; Examining Kerbin's atmosphere}}</ref> In general, the atmospheric pressure on Kerbin, at an altitude expressed in meters, is:<br />
<br />
: <math>p_k = e^{-altitude/5000}</math><br />
<br />
The thickness of Kerbin's atmosphere makes it suitable for [[aerobraking]] and using [[parachute]]s, useful for saving on fuel when spacecraft return to Kerbin. Note that debris is not affected by air resistance above approximately 10 km, so spent stages may continue in a stable orbit even if they are going through thick atmosphere that would stop an active craft (0.19). Crafts will experience re entry and supersonic air effects as of 0.19. This however will not damage or burn it.<br />
<br />
The following table gives approximation of terminal velocities at different Kerbin altitudes. These are also the velocities at which a ship should travel for a fuel-optimal ascent from Kerbin, given the game's model of atmospheric drag.<ref>http://forum.kerbalspaceprogram.com/showthread.php/6664-Mini-challenge-max-altitude-with-this-supplied-spacecraft?p=100912&viewfull=1#post100912</ref><br />
<br />
{| class="wikitable"<br />
|-<br />
! Altitude (m) !! Velocity (m/s)<br />
|-<br />
| 75 || 107<br />
|-<br />
| 1000 || 114<br />
|-<br />
| 2000 || 124<br />
|-<br />
| 3000 || 136<br />
|-<br />
| 4000 || 152<br />
|-<br />
| 5000 || 169<br />
|-<br />
| 6000 || 188<br />
|-<br />
| 7000 || 209<br />
|-<br />
| 8000 || 232<br />
|-<br />
| 9000 || 256<br />
|-<br />
| 10000 || 281<br />
|-<br />
| 12500 || 348<br />
|-<br />
| 15000 || 419<br />
|-<br />
| 20000 || 566<br />
|-<br />
| 32000 || 2250<br />
|}<br />
<br />
== Orbits ==<br />
[[File:Screenshot39.png|thumbnail|left|A Stayputnik Orbiter]]<br />
[[w:Geosynchronous_orbit|Geosynchronous orbit]] is achieved at an altitude of {{OrbitAltitude | period_s=21600 | mass_kg=5.29157926281091e22 | radius_km=600}} and a speed of {{sigfigs|{{OrbitVelocity | period_s=21600 | mass_kg=5.29157926281091e22 | radius_km=600 |suffix=}}|7}} m/s. From a 70 km low equatorial orbit, the periapsis maneuver requires 676.5 m/s and the apoapsis maneuver requires 434.9 m/s. A [[w:semi-synchronous_orbit|semi-synchronous orbit]] with an orbital period of 1/2 of Kerbin's rotation period (3 hours or 10800 seconds) is achieved at an altitude of {{OrbitAltitude | period_s=10800 | mass_kg=5.29157926281091e22 | radius_km=600}} with an orbital velocity of<br />
{{sigfigs|{{OrbitVelocity | period_s=10800 | mass_kg=5.29157926281091e22 | radius_km=600 |suffix=}}|7}} m/s.<br />
<br />
The [[w:Hill_radius|Hill Sphere]] (the radius around the planet at which moons are gravitationally stable) of Kerbin is 136 185km, or roughly 227 Kerbin radii.<br />
<div style="clear:left;"></div><br />
<br />
== Interplanetary Travel ==<br />
<br />
From the lowest stable orbit around Kerbin (70 km), the amount of delta-V needed to reach the orbits of other celestials is as follows:<br />
<br />
{| class="wikitable"<br />
<br />
!Body<br />
!colspan="2"|Delta-V<br />
|-<br />
| [[Mün]]<br />
|colspan="2"| ~860 m/s<br />
|-<br />
| [[Minmus]]<br />
|colspan="2"| ~930 m/s<br />
|-<br />
| [[Eve]]<br />
|colspan="2"| ~1033 m/s<br />
|-<br />
| [[Duna]]<br />
|colspan="2"| ~1060 m/s<br />
|-<br />
| [[Moho]]<br />
|colspan="2"| ~1676 m/s<br />
|-<br />
| [[Jool]]<br />
|colspan="2"| ~1915 m/s<br />
|-<br />
<br />
| [[Eeloo]]<br />
|colspan="2"| ~2100 m/s<br />
|-<br />
| [[KEO]] (comparison)<br />
|colspan="2"| ~1120 m/s<br />
|-<br />
|}<br />
<br />
== Reference Frames ==<br />
{{:Kerbin/RefFrame}}<br />
<br />
== Gallery ==<br />
<gallery><br />
NJ6qJ.jpg | A projection map of Kerbin, as of {{version|0.14.1|}} and before (including the old demo).<br />
Kerbin color.png | An accurate full-colour projection map of Kerbin as of {{version|0.14.2|}} to {{version|0.17.1|}}<br />
KerbinDeltaVMap.png | A map displaying the delta V needed from/to Kerbin<br />
Kerbin_mun_minmus.jpg | Kerbin, Mün and Minmus.<br />
Kerbin,_Mun,_and_Minmus.jpeg | Kerbin with its two natural satellites, the Mun and Minmus, seen from KEO. Minmus can be seen just above the horizon of Kerbin on the left side of the picture.<br />
kerbin map 800.gif | A topographic heightmap of Kerbin made with the ISA MapSat plugin<br />
Kerbinmun500550km.png | Kerbin and the Mun, barely visible from ~500,550,000m<br />
Kerbin ISA Topo.png | Topographical image of Kerbin '''from 0.17.1'''. The terrain is slightly different in the latest version.<ref>http://forum.kerbalspaceprogram.com/entry.php/247-A-Brave-New-World</ref><br />
Kerbin r0 1.png | An unmanned probe on escape trajectory, flying past Kerbin, Mün and Minmus<br />
KerbalPolar1.png | Kerbin's North Pole<br />
</gallery><br />
{{SpoilerBox<br />
|description=Spoiler images<br />
|content=<gallery><br />
Kermmunist_Launch_Site.png | The second launch site (currently unused).<br />
KEasterEgg.png | Kerbin from above with the Runway Easter Egg<br />
<br />
</gallery>}}<br />
<br />
== Changes ==<br />
;{{Version|0.19.1|}}<br />
*Fixed ladders on the fuel tanks near the launchpad.<br />
;{{Version|0.19|}}<br />
*New mesh for the launchpad and area (no launchtower anymore).<br />
*New mesh for the runway, with lights and sloping edges for rovers.<br />
;{{Version|0.18|}}<br />
*Terrain overhaul: Entire planet redo. Deserts, darker and greener grass, islands, darker ocean/water, snow capped mountains. Looks more realistic.<br />
*Several [[List of easter eggs|Easter Eggs]] added.<br />
*Airport added to island off of KSC coastline. (Not a launching point)<br />
;{{Version|0.17|}}<br />
* Improved atmosphere visuals. <br />
;{{Version|0.15|}}<br />
* [[Minmus]] added.<br />
;{{Version|0.14.2|}}<br />
* Much more varied and taller terrain added. Prior to this, some mountain ranges exceeded 600 m in height, but the tallest point was at an altitude of approximately 900 m.<br />
;{{Version|0.12|}}<br />
* [[Mün]] added.<br />
;{{Version|0.11|}}<br />
* Terrain overhaul, oceans became wet.<br />
;{{Version|0.10.1|}}<br />
* Atmosphere extended from ~34,500 m to ~69,000 m.<br />
;{{Version|0.7.3|}}<br />
* Initial Release<br />
<br />
== Trivia ==<br />
Kerbin's continents are derived from libnoise <ref> http://libnoise.sourceforge.net/examples/complexplanet/</ref>, though they have been increasingly modified with time.<br />
<br />
== Notes ==<br />
<references /><br />
<br />
<br />
{{Celestial Bodies}}<br />
[[Category:Celestials]]<br />
[[Category:Planets]]</div>Euracilhttps://wiki.kerbalspaceprogram.com/index.php?title=Kerbin&diff=21467Kerbin2013-07-10T23:20:26Z<p>Euracil: Added new photo to the gallery: "Kerbin,_Mun,_and_Minmus.jpeg"</p>
<hr />
<div>{{:Kerbin/Data}}<br />
<br />
'''Kerbin''' is the home planet of the [[Kerbal]]s, the location of the [[Kerbal Space Center|Space Center]], and the main focus of [[Kerbal Space Program]]. It is the [[w:Earth|Earth]] analog for the game. It has two [[moon]]s, named '''[[Mün]]''' and '''[[Minmus]]'''.<br />
<br />
Kerbin is the third planet in [[orbit]] around the star [[Kerbol]]. It is the third largest planet (after [[Jool]] and [[Eve]]) and the fourth largest celestial object around Kerbol (with [[Tylo]], a moon of Jool, being slightly larger).<br />
<br />
Reaching a stable orbit around Kerbin is one of the first milestones a player might achieve in the game. Achieving such an orbit with a fuel-optimal ascent<ref>A fuel-optimal ascent is one which (a) minimizes velocity losses to gravity and [[atmosphere|atmospheric drag]] and (b) launches eastward (toward the 90 degree heading) to gain 174.5 m/s of orbital velocity for free, thanks to Kerbin's rotation.</ref> requires a [[delta-V]] of ≈4500 m/s,<ref>See [http://forum.kerbalspaceprogram.com/showthread.php/24017-Least-delta-v-to-orbit this challenge on the forum] and a popular [http://i.imgur.com/CEZS1.png Kerbin delta-V chart]</ref> the second largest of all celestial bodies with a solid surface after [[Eve]]. For many interplanetary missions, this represents over half of the flight's total delta-V requirement. This is also true of Earth-based interplanetary spaceflights, leading one observer to remark that:<br />
{{Quote|If you can get your ship into orbit, you're halfway to anywhere.|Robert Heinlein|quoted on page 194 of ''A Step Farther Out'' by Jerry Pournelle}}<br />
<br />
== Topography ==<br />
[[File:Kerbin_heightmap.jpg|thumb|left|Topographical representation of Kerbin's surface as of .18.2. Click for high resolution. by Zeroignite]]<br />
Kerbin has a roughly equal distribution of surface liquid water and solid land, with polar icecaps and scattered deserts. There are mountains exceeding 4 km in height, with the tallest peak being just under 4044 m in altitude.<br />
<br />
<br />
====Craters====<br />
[[File:KerbinCraterElevation.jpg|thumb|left|Terrain model centered on one of Kerbin's most pronounced craters]]<br />
Unlike other bodies in it's system Kerbin has fewer visible craters. This could be attributed to many causes. The environment would cause erosion of many geological features. Also due to its atmosphere, and large moon, fewer meteorites would make it to it's surface. However, some geological formations would lead one to believe Kerbin has been subjected to violent collisions in the past. It has two features that appear to be impact craters, separated coincidentally by nearly 180 degrees. The least eroded, and presumably youngest, of the two (both are in excess of 100 km diameter) is located along the coastline. The uplift is easily visible as a series of islands and it has a central peak poking out of the water. The other, and older of the two, is located near the prime meridian in the northern hemisphere. It is more easily missed, but its uplift rims are visible and it has a central rebound peak.<br />
<br />
== Atmosphere ==<br />
<!-- SPECULATION: Kerbin has an atmosphere of unknown composition, though because Kerbin has plants and animals, it can be assumed there is O<sub>2</sub>, N<sub>2</sub>, and CO<sub>2</sub>. -->Kerbin's [[atmosphere]] contains oxygen and extends to roughly 69,078 meters. Its atmosphere becomes exponentially less dense as altitude increases (with a scale height of 5 km).<ref>{{forum link|threadID=16000|threadName=&#91;KGSS&#93; Examining Kerbin's atmosphere}}</ref> In general, the atmospheric pressure on Kerbin, at an altitude expressed in meters, is:<br />
<br />
: <math>p_k = e^{-altitude/5000}</math><br />
<br />
The thickness of Kerbin's atmosphere makes it suitable for [[aerobraking]] and using [[parachute]]s, useful for saving on fuel when spacecraft return to Kerbin. Note that debris is not affected by air resistance above approximately 10 km, so spent stages may continue in a stable orbit even if they are going through thick atmosphere that would stop an active craft (0.19). Crafts will experience re entry and supersonic air effects as of 0.19. This however will not damage or burn it.<br />
<br />
The following table gives approximation of terminal velocities at different Kerbin altitudes. These are also the velocities at which a ship should travel for a fuel-optimal ascent from Kerbin, given the game's model of atmospheric drag.<ref>http://forum.kerbalspaceprogram.com/showthread.php/6664-Mini-challenge-max-altitude-with-this-supplied-spacecraft?p=100912&viewfull=1#post100912</ref><br />
<br />
{| class="wikitable"<br />
|-<br />
! Altitude (m) !! Velocity (m/s)<br />
|-<br />
| 75 || 107<br />
|-<br />
| 1000 || 114<br />
|-<br />
| 2000 || 124<br />
|-<br />
| 3000 || 136<br />
|-<br />
| 4000 || 152<br />
|-<br />
| 5000 || 169<br />
|-<br />
| 6000 || 188<br />
|-<br />
| 7000 || 209<br />
|-<br />
| 8000 || 232<br />
|-<br />
| 9000 || 256<br />
|-<br />
| 10000 || 281<br />
|-<br />
| 12500 || 348<br />
|-<br />
| 15000 || 419<br />
|-<br />
| 20000 || 566<br />
|-<br />
| 32000 || 2250<br />
|}<br />
<br />
== Orbits ==<br />
[[File:Screenshot39.png|thumbnail|left|A Stayputnik Orbiter]]<br />
[[w:Geosynchronous_orbit|Geosynchronous orbit]] is achieved at an altitude of {{OrbitAltitude | period_s=21600 | mass_kg=5.29157926281091e22 | radius_km=600}} and a speed of {{sigfigs|{{OrbitVelocity | period_s=21600 | mass_kg=5.29157926281091e22 | radius_km=600 |suffix=}}|7}} m/s. From a 70 km low equatorial orbit, the periapsis maneuver requires 676.5 m/s and the apoapsis maneuver requires 434.9 m/s. A [[w:semi-synchronous_orbit|semi-synchronous orbit]] with an orbital period of 1/2 of Kerbin's rotation period (3 hours or 10800 seconds) is achieved at an altitude of {{OrbitAltitude | period_s=10800 | mass_kg=5.29157926281091e22 | radius_km=600}} with an orbital velocity of<br />
{{sigfigs|{{OrbitVelocity | period_s=10800 | mass_kg=5.29157926281091e22 | radius_km=600 |suffix=}}|7}} m/s.<br />
<br />
The [[w:Hill_radius|Hill Sphere]] (the radius around the planet at which moons are gravitationally stable) of Kerbin is 136 185km, or roughly 227 Kerbin radii.<br />
<div style="clear:left;"></div><br />
<br />
== Interplanetary Travel ==<br />
<br />
From the lowest stable orbit around Kerbin (70 km), the amount of delta-V needed to reach the orbits of other celestials is as follows:<br />
<br />
{| class="wikitable"<br />
<br />
!Body<br />
!colspan="2"|Delta-V<br />
|-<br />
| [[Mün]]<br />
|colspan="2"| ~860 m/s<br />
|-<br />
| [[Minmus]]<br />
|colspan="2"| ~930 m/s<br />
|-<br />
| [[Eve]]<br />
|colspan="2"| ~1033 m/s<br />
|-<br />
| [[Duna]]<br />
|colspan="2"| ~1060 m/s<br />
|-<br />
| [[Moho]]<br />
|colspan="2"| ~1676 m/s<br />
|-<br />
| [[Jool]]<br />
|colspan="2"| ~1915 m/s<br />
|-<br />
<br />
| [[Eeloo]]<br />
|colspan="2"| ~2100 m/s<br />
|-<br />
| [[KEO]] (comparison)<br />
|colspan="2"| ~1120 m/s<br />
|-<br />
|}<br />
<br />
== Reference Frames ==<br />
{{:Kerbin/RefFrame}}<br />
<br />
== Gallery ==<br />
<gallery><br />
NJ6qJ.jpg | A projection map of Kerbin, as of {{version|0.14.1|}} and before (including the old demo).<br />
Kerbin color.png | An accurate full-colour projection map of Kerbin as of {{version|0.14.2|}} to {{version|0.17.1|}}<br />
KerbinDeltaVMap.png | A map displaying the delta V needed from/to Kerbin<br />
Kerbin_mun_minmus.jpg | Kerbin, Mün and Minmus.<br />
Kerbin,_Mun,_and_Minmus.jpeg | Kerbin with it's two natural satellites, the Mun and Minmus, seen from KEO. Minmus can be seen just above the horizon of Kerbin on the left side of the picture.<br />
kerbin map 800.gif | A topographic heightmap of Kerbin made with the ISA MapSat plugin<br />
Kerbinmun500550km.png | Kerbin and the Mun, barely visible from ~500,550,000m<br />
Kerbin ISA Topo.png | Topographical image of Kerbin '''from 0.17.1'''. The terrain is slightly different in the latest version.<ref>http://forum.kerbalspaceprogram.com/entry.php/247-A-Brave-New-World</ref><br />
Kerbin r0 1.png | An unmanned probe on escape trajectory, flying past Kerbin, Mün and Minmus<br />
KerbalPolar1.png | Kerbin's North Pole<br />
</gallery><br />
{{SpoilerBox<br />
|description=Spoiler images<br />
|content=<gallery><br />
Kermmunist_Launch_Site.png | The second launch site (currently unused).<br />
KEasterEgg.png | Kerbin from above with the Runway Easter Egg<br />
<br />
</gallery>}}<br />
<br />
== Changes ==<br />
;{{Version|0.19.1|}}<br />
*Fixed ladders on the fuel tanks near the launchpad.<br />
;{{Version|0.19|}}<br />
*New mesh for the launchpad and area (no launchtower anymore).<br />
*New mesh for the runway, with lights and sloping edges for rovers.<br />
;{{Version|0.18|}}<br />
*Terrain overhaul: Entire planet redo. Deserts, darker and greener grass, islands, darker ocean/water, snow capped mountains. Looks more realistic.<br />
*Several [[List of easter eggs|Easter Eggs]] added.<br />
*Airport added to island off of KSC coastline. (Not a launching point)<br />
;{{Version|0.17|}}<br />
* Improved atmosphere visuals. <br />
;{{Version|0.15|}}<br />
* [[Minmus]] added.<br />
;{{Version|0.14.2|}}<br />
* Much more varied and taller terrain added. Prior to this, some mountain ranges exceeded 600 m in height, but the tallest point was at an altitude of approximately 900 m.<br />
;{{Version|0.12|}}<br />
* [[Mün]] added.<br />
;{{Version|0.11|}}<br />
* Terrain overhaul, oceans became wet.<br />
;{{Version|0.10.1|}}<br />
* Atmosphere extended from ~34,500 m to ~69,000 m.<br />
;{{Version|0.7.3|}}<br />
* Initial Release<br />
<br />
== Trivia ==<br />
Kerbin's continents are derived from libnoise <ref> http://libnoise.sourceforge.net/examples/complexplanet/</ref>, though they have been increasingly modified with time.<br />
<br />
== Notes ==<br />
<references /><br />
<br />
<br />
{{Celestial Bodies}}<br />
[[Category:Celestials]]<br />
[[Category:Planets]]</div>Euracilhttps://wiki.kerbalspaceprogram.com/index.php?title=Talk:Kerbin&diff=21458Talk:Kerbin2013-07-10T03:52:33Z<p>Euracil: Undoing improper topic addition i made</p>
<hr />
<div>== Infobox ==<br />
<br />
I've attempted to make an infobox template for planets, [[:Template:Planetbox]], to bring it closer in line to the stock parts here and planets on wikipedia. Any advice would be welcome. {{unsigned|Craigmt}}<br />
* So far, so good. I think you have more columns than you originally anticipated, though, so many of the cellss are floating around. -- [[User:N3X15|N3X15]] ([[User talk:N3X15|talk]]) 19:22, 24 September 2012 (UTC)<br />
* Yeah, the length of the template is breaking some formatting stuff on articles it's transcluded in. It looks good, but I'd personally trim it down to mass/diameter/etc. and leave orbital information in the article proper. --{{User:Trinexx/sig2}} 19:34, 24 September 2012 (UTC)<br />
<br />
So, leave orbital characteristics in the article itself and keep physical characteristics in the box? {{unsigned|Craigmt}}<br />
* That's my personal recommendation, at least. I imagine other people have their own opinions on the matter. --{{User:Trinexx/sig2}} 20:40, 24 September 2012 (UTC)<br />
<br />
== Links ==<br />
<br />
All the links used in the references are broken. Just an FYI. -- [[User:N3X15|N3X15]] ([[User talk:N3X15|talk]]) 09:55, 1 October 2012 (UTC)<br />
<br />
== 'Kermunist' ==<br />
<br />
Should this term really be used? [[User:Thecoshman|Thecoshman]] ([[User talk:Thecoshman|talk]]) 18:28, 7 October 2012 (UTC)<br />
: There are no factions in the game, so it would be better to not have that in there, as it'd cause confusion. We do need a Manual of Style to cover stuff like this. -- [[User:N3X15|N3X15]] ([[User talk:N3X15|talk]]) 20:30, 7 October 2012 (UTC)<br />
<br />
== Atmosphere ==<br />
<br />
I edited the atmosphere section to make clear the units of d_k & p_k after working through gamedata.<br />
Still unsure what units p_k are in<br />
FlightGlobals.getStaticPressure() values are in atm,<br />
with 1 atm = 101325 Pa to get an absolute static pressure value needed for ideal gas law<br />
-Kellven<br />
<br />
<br />
Should it be mentioned that because Kerbin has plant and animal life, that therefore the atmosphere is similair to our own? That would be a bit quick on the draw given that even our atmosphere is extremly hostile to some earthbound organisms.<br />
--[[User:Azivegu|Azivegu]] ([[User talk:Azivegu|talk]]) 08:33, 13 December 2012 (UTC)<br />
<br />
== Orbital information ==<br />
<br />
it mentions in the infobox that Kerbin has a o ecc and 0 inc orbit.. i don't think thats correct, can someone plug the correct figures in?<br />
: Maltesh's rip of the 0.18.2 orbital parameters has those, and a quick check in map view shows Kerbin's altitude and speed not changing anywhere in the orbit, so it should still be correct. [[User:UmbralRaptor|UmbralRaptor]] ([[User talk:UmbralRaptor|talk]]) 06:48, 1 February 2013 (CST)<br />
:: I'm not sure it's the best place for this information, but I linked to the planetary data spreadsheet and text files at [[Celestials#Notes]]. &mdash; [[User:Elembis|Elembis]] ([[User talk:Elembis|talk]]) 10:54, 1 February 2013 (CST)<br />
Well, that will teach me to open my big mouth before checking my facts. I guess the inclination of the other bodies is measured relative to Kerbin. Oops. [[User:Kahlzun|Kahlzun]] ([[User talk:Kahlzun|talk]]) 21:14, 8 February 2013 (CST)<br />
<br />
== Map ==<br />
Does anyone now what projection the map is in? a link to the relevant page would be nice, i am refering to the one in the Topography section<br />
:What map do you mean? — [[User:XZise|xZise]] <small valign="middle">&#91;[[User talk:XZise|talk]]&#93;</small> 02:37, 22 April 2013 (CDT)<br />
:I would guess [[w:Equirectangular projection|Equirectangular projection]] as the one degree in both axes in [[:File:Kerbin heightmap.jpg]] have always the same length. — [[User:XZise|xZise]] <small>&#91;[[User talk:XZise|talk]]&#93;</small> 08:15, 18 May 2013 (CDT)<br />
<br />
== Orbits ==<br />
I crunched the numbers using a few different methods and I keep getting a discrepancy between my numbers and the listed figures (I calculate a GEO orbital velocity of ≈1109 m/s, a difference of exactly 100 m/s). Can someone confirm this? Otherwise, tell me why I'm wrong. ;) -- [[User:Eurousalas|Eurousalas]] ([[User talk:Eurousalas|talk]]) 14:51, 22 April 2013 (EST)<br />
:I can confirm both. [https://www.wolframalpha.com/input/?i=orbital+velocity&a=*C.orbital+velocity-_*Formula.dflt-&a=*FS-_**CircularOrbitSpeed.vc-.*CircularOrbitSpeed.m-.*CircularOrbitSpeed.r--&f3=5.29157926281091e22+kg&x=0&y=0&f=CircularOrbitSpeed.m_5.29157926281091e22+kg&f4=2868.75+km+&f=CircularOrbitSpeed.r_2868.75+km+&a=*FVarOpt.1-_***CircularOrbitSpeed.r--.***CircularOrbitSpeed.h-.*CircularOrbitSpeed.radius---.*-- This confirm your value] while [https://www.wolframalpha.com/input/?i=%28G*5.29157926281091e22+kg%2F%28%2821600s%29^2*G*5.29157926281091e22+kg%2F%284*pi^2%29%29^1%2F3%29^0.5 this confirm the value of this page]. What formula do you use?<br />
::<math>v=\sqrt{\frac{G \cdot m}{\sqrt[3]{\frac{p^2 \cdot G \cdot m}{4 \cdot \pi^2}}}}</math><br />
::<small>m = orbited body mass, p = orbital period</small><br />
:— [[User:XZise|xZise]] <small valign="middle">&#91;[[User talk:XZise|talk]]&#93;</small> 14:54, 22 April 2013 (CDT)<br />
::Thanks to a friend, I know what your mistake is: The GSO altitude is given relative to the planet's surface not gravity center. Now {{Tl|OrbitVelocity}} and [https://www.wolframalpha.com/input/?i=orbital+velocity&a=*C.orbital+velocity-_*Formula.dflt-&a=*FS-_**CircularOrbitSpeed.vc-.*CircularOrbitSpeed.m-.*CircularOrbitSpeed.r--&f3=5.29157926281091e22+kg&x=0&y=0&f=CircularOrbitSpeed.m_5.29157926281091e22+kg&f4=3468.75+km+&f=CircularOrbitSpeed.r_3468.75+km+&a=*FVarOpt.1-_***CircularOrbitSpeed.r--.***CircularOrbitSpeed.h-.*CircularOrbitSpeed.radius---.*-- wolfram alpha] need this value to be from the gravity center. So you need to add 600 km to your altitude and then you get the correct value. — [[User:XZise|xZise]] <small valign="middle">&#91;[[User talk:XZise|talk]]&#93;</small> 15:03, 22 April 2013 (CDT)<br />
:::Ack, I knew it would be an obvious mistake. Thanks for pointing that out, it would have bugged me for a long time. -- [[User:Eurousalas|Eurousalas]] ([[User talk:Eurousalas|talk]]) 17:46, 27 April 2013 (EST)<br />
<br />
== Map ==<br />
<br />
I'd like to note that both true-colour maps are outdated. Saik0 on the KSP forums has made maps which are not outdated and in Full-HD and uploaded them on http://www.kerbalmaps.com/ . The website includes anomaly locations (optional), elevation maps, slope maps and true colour maps for all bodies in the Kerbol system except for Kerbol and Jool. He also put those maps online for download at https://mega.co.nz/#F!8EAnSL5Z!OAyLBQqrQtlmfL0GT8fcQg!EBYyXRxA . I have not uploaded any of these images myself yet, because e.g. the Duna true-colour map is something like 77.5 MB where 2 MB are allowed and I'm unable to compress them. I came here to ask if someone would be interested in compressing these for the community. Oh also, here have his KSP forums thread: http://forum.kerbalspaceprogram.com/showthread.php/25148-Web-maps-of-all-bodies-(0-4-ALL-bodies-mapped!)?p=307335#post307335<br />
[[User:MmPMSFmM|MmPMSFmM]] ([[User talk:MmPMSFmM|talk]]) 07:42, 2 July 2013 (CDT)<br />
:I'm wondering where the Kerbin map is on your download link? Here are my suggestions to compress them:<br />
:* Use a compression format like png/jpg<br />
:* Reduce the resolution of the image (may not be needed when compressing with jpg)<br />
:— [[User:XZise|xZise]] <small>&#91;[[User talk:XZise|talk]]&#93;</small> 08:36, 2 July 2013 (CDT)<br />
::I just found out why you can't find the Kerbin files on that MEGA site: on the forums the author says that "it is his first map and only has half the resolution of the others" and that he will upload it once he redoes it. Also I'm having problems with that MEGA site and Firefox, can't download the files, because of some message about accepting another message that doesn't appear for me... --[[User:Dgelessus|dgelessus]] <sup>([[User talk:Dgelessus|talk]] &middot; [[Special:Contributions/Dgelessus|contribs]])</sup> 09:23, 2 July 2013 (CDT)<br />
:::I'm able to download the images. I tested Gilly but when I tried to edit ''gilly_0.19.1_0.02197265625_-180_90_180_-90_16384x8192.elevation.tif'' (which I guess is the most important type of map?) I can't open or edit it because: ''convert: Sorry, can not handle images with 32-bit samples.''. Maybe I find a way to fix this and I'll upload some files. — [[User:XZise|xZise]] <small>&#91;[[User talk:XZise|talk]]&#93;</small> 19:10, 2 July 2013 (CDT)</div>Euracilhttps://wiki.kerbalspaceprogram.com/index.php?title=Talk:Kerbin&diff=21457Talk:Kerbin2013-07-10T03:51:09Z<p>Euracil: </p>
<hr />
<div>== Infobox ==<br />
<br />
I've attempted to make an infobox template for planets, [[:Template:Planetbox]], to bring it closer in line to the stock parts here and planets on wikipedia. Any advice would be welcome. {{unsigned|Craigmt}}<br />
* So far, so good. I think you have more columns than you originally anticipated, though, so many of the cellss are floating around. -- [[User:N3X15|N3X15]] ([[User talk:N3X15|talk]]) 19:22, 24 September 2012 (UTC)<br />
* Yeah, the length of the template is breaking some formatting stuff on articles it's transcluded in. It looks good, but I'd personally trim it down to mass/diameter/etc. and leave orbital information in the article proper. --{{User:Trinexx/sig2}} 19:34, 24 September 2012 (UTC)<br />
<br />
So, leave orbital characteristics in the article itself and keep physical characteristics in the box? {{unsigned|Craigmt}}<br />
* That's my personal recommendation, at least. I imagine other people have their own opinions on the matter. --{{User:Trinexx/sig2}} 20:40, 24 September 2012 (UTC)<br />
<br />
== Links ==<br />
<br />
All the links used in the references are broken. Just an FYI. -- [[User:N3X15|N3X15]] ([[User talk:N3X15|talk]]) 09:55, 1 October 2012 (UTC)<br />
<br />
== 'Kermunist' ==<br />
<br />
Should this term really be used? [[User:Thecoshman|Thecoshman]] ([[User talk:Thecoshman|talk]]) 18:28, 7 October 2012 (UTC)<br />
: There are no factions in the game, so it would be better to not have that in there, as it'd cause confusion. We do need a Manual of Style to cover stuff like this. -- [[User:N3X15|N3X15]] ([[User talk:N3X15|talk]]) 20:30, 7 October 2012 (UTC)<br />
<br />
== Atmosphere ==<br />
<br />
I edited the atmosphere section to make clear the units of d_k & p_k after working through gamedata.<br />
Still unsure what units p_k are in<br />
FlightGlobals.getStaticPressure() values are in atm,<br />
with 1 atm = 101325 Pa to get an absolute static pressure value needed for ideal gas law<br />
-Kellven<br />
<br />
<br />
Should it be mentioned that because Kerbin has plant and animal life, that therefore the atmosphere is similair to our own? That would be a bit quick on the draw given that even our atmosphere is extremly hostile to some earthbound organisms.<br />
--[[User:Azivegu|Azivegu]] ([[User talk:Azivegu|talk]]) 08:33, 13 December 2012 (UTC)<br />
<br />
== Orbital information ==<br />
<br />
it mentions in the infobox that Kerbin has a o ecc and 0 inc orbit.. i don't think thats correct, can someone plug the correct figures in?<br />
: Maltesh's rip of the 0.18.2 orbital parameters has those, and a quick check in map view shows Kerbin's altitude and speed not changing anywhere in the orbit, so it should still be correct. [[User:UmbralRaptor|UmbralRaptor]] ([[User talk:UmbralRaptor|talk]]) 06:48, 1 February 2013 (CST)<br />
:: I'm not sure it's the best place for this information, but I linked to the planetary data spreadsheet and text files at [[Celestials#Notes]]. &mdash; [[User:Elembis|Elembis]] ([[User talk:Elembis|talk]]) 10:54, 1 February 2013 (CST)<br />
Well, that will teach me to open my big mouth before checking my facts. I guess the inclination of the other bodies is measured relative to Kerbin. Oops. [[User:Kahlzun|Kahlzun]] ([[User talk:Kahlzun|talk]]) 21:14, 8 February 2013 (CST)<br />
<br />
== Map ==<br />
Does anyone now what projection the map is in? a link to the relevant page would be nice, i am refering to the one in the Topography section<br />
:What map do you mean? — [[User:XZise|xZise]] <small valign="middle">&#91;[[User talk:XZise|talk]]&#93;</small> 02:37, 22 April 2013 (CDT)<br />
:I would guess [[w:Equirectangular projection|Equirectangular projection]] as the one degree in both axes in [[:File:Kerbin heightmap.jpg]] have always the same length. — [[User:XZise|xZise]] <small>&#91;[[User talk:XZise|talk]]&#93;</small> 08:15, 18 May 2013 (CDT)<br />
<br />
== Orbits ==<br />
I crunched the numbers using a few different methods and I keep getting a discrepancy between my numbers and the listed figures (I calculate a GEO orbital velocity of ≈1109 m/s, a difference of exactly 100 m/s). Can someone confirm this? Otherwise, tell me why I'm wrong. ;) -- [[User:Eurousalas|Eurousalas]] ([[User talk:Eurousalas|talk]]) 14:51, 22 April 2013 (EST)<br />
:I can confirm both. [https://www.wolframalpha.com/input/?i=orbital+velocity&a=*C.orbital+velocity-_*Formula.dflt-&a=*FS-_**CircularOrbitSpeed.vc-.*CircularOrbitSpeed.m-.*CircularOrbitSpeed.r--&f3=5.29157926281091e22+kg&x=0&y=0&f=CircularOrbitSpeed.m_5.29157926281091e22+kg&f4=2868.75+km+&f=CircularOrbitSpeed.r_2868.75+km+&a=*FVarOpt.1-_***CircularOrbitSpeed.r--.***CircularOrbitSpeed.h-.*CircularOrbitSpeed.radius---.*-- This confirm your value] while [https://www.wolframalpha.com/input/?i=%28G*5.29157926281091e22+kg%2F%28%2821600s%29^2*G*5.29157926281091e22+kg%2F%284*pi^2%29%29^1%2F3%29^0.5 this confirm the value of this page]. What formula do you use?<br />
::<math>v=\sqrt{\frac{G \cdot m}{\sqrt[3]{\frac{p^2 \cdot G \cdot m}{4 \cdot \pi^2}}}}</math><br />
::<small>m = orbited body mass, p = orbital period</small><br />
:— [[User:XZise|xZise]] <small valign="middle">&#91;[[User talk:XZise|talk]]&#93;</small> 14:54, 22 April 2013 (CDT)<br />
::Thanks to a friend, I know what your mistake is: The GSO altitude is given relative to the planet's surface not gravity center. Now {{Tl|OrbitVelocity}} and [https://www.wolframalpha.com/input/?i=orbital+velocity&a=*C.orbital+velocity-_*Formula.dflt-&a=*FS-_**CircularOrbitSpeed.vc-.*CircularOrbitSpeed.m-.*CircularOrbitSpeed.r--&f3=5.29157926281091e22+kg&x=0&y=0&f=CircularOrbitSpeed.m_5.29157926281091e22+kg&f4=3468.75+km+&f=CircularOrbitSpeed.r_3468.75+km+&a=*FVarOpt.1-_***CircularOrbitSpeed.r--.***CircularOrbitSpeed.h-.*CircularOrbitSpeed.radius---.*-- wolfram alpha] need this value to be from the gravity center. So you need to add 600 km to your altitude and then you get the correct value. — [[User:XZise|xZise]] <small valign="middle">&#91;[[User talk:XZise|talk]]&#93;</small> 15:03, 22 April 2013 (CDT)<br />
:::Ack, I knew it would be an obvious mistake. Thanks for pointing that out, it would have bugged me for a long time. -- [[User:Eurousalas|Eurousalas]] ([[User talk:Eurousalas|talk]]) 17:46, 27 April 2013 (EST)<br />
<br />
== Map ==<br />
<br />
I'd like to note that both true-colour maps are outdated. Saik0 on the KSP forums has made maps which are not outdated and in Full-HD and uploaded them on http://www.kerbalmaps.com/ . The website includes anomaly locations (optional), elevation maps, slope maps and true colour maps for all bodies in the Kerbol system except for Kerbol and Jool. He also put those maps online for download at https://mega.co.nz/#F!8EAnSL5Z!OAyLBQqrQtlmfL0GT8fcQg!EBYyXRxA . I have not uploaded any of these images myself yet, because e.g. the Duna true-colour map is something like 77.5 MB where 2 MB are allowed and I'm unable to compress them. I came here to ask if someone would be interested in compressing these for the community. Oh also, here have his KSP forums thread: http://forum.kerbalspaceprogram.com/showthread.php/25148-Web-maps-of-all-bodies-(0-4-ALL-bodies-mapped!)?p=307335#post307335<br />
[[User:MmPMSFmM|MmPMSFmM]] ([[User talk:MmPMSFmM|talk]]) 07:42, 2 July 2013 (CDT)<br />
:I'm wondering where the Kerbin map is on your download link? Here are my suggestions to compress them:<br />
:* Use a compression format like png/jpg<br />
:* Reduce the resolution of the image (may not be needed when compressing with jpg)<br />
:— [[User:XZise|xZise]] <small>&#91;[[User talk:XZise|talk]]&#93;</small> 08:36, 2 July 2013 (CDT)<br />
::I just found out why you can't find the Kerbin files on that MEGA site: on the forums the author says that "it is his first map and only has half the resolution of the others" and that he will upload it once he redoes it. Also I'm having problems with that MEGA site and Firefox, can't download the files, because of some message about accepting another message that doesn't appear for me... --[[User:Dgelessus|dgelessus]] <sup>([[User talk:Dgelessus|talk]] &middot; [[Special:Contributions/Dgelessus|contribs]])</sup> 09:23, 2 July 2013 (CDT)<br />
:::I'm able to download the images. I tested Gilly but when I tried to edit ''gilly_0.19.1_0.02197265625_-180_90_180_-90_16384x8192.elevation.tif'' (which I guess is the most important type of map?) I can't open or edit it because: ''convert: Sorry, can not handle images with 32-bit samples.''. Maybe I find a way to fix this and I'll upload some files. — [[User:XZise|xZise]] <small>&#91;[[User talk:XZise|talk]]&#93;</small> 19:10, 2 July 2013 (CDT)<br />
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Should this page have a section on natural satellites? Jool's page does.</div>Euracilhttps://wiki.kerbalspaceprogram.com/index.php?title=File:Kerbin,_Mun,_and_Minmus.jpeg&diff=21456File:Kerbin, Mun, and Minmus.jpeg2013-07-10T03:27:06Z<p>Euracil: Kerbin and it's moons, Mun and Minmus. Captured from 1:1 synchronous orbit.</p>
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<div>Kerbin and it's moons, Mun and Minmus. Captured from 1:1 synchronous orbit.</div>Euracil