Difference between revisions of "Kerbol"
From Kerbal Space Program Wiki
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{{:Kerbol/Data}} | {{:Kerbol/Data}} | ||
| − | [[Kerbol]] (officially called '''the Sun''', and also known as '''the Star''') is the star | + | [[Kerbol]] (officially called '''the Sun''', and also known as '''the Star''') is the central star of the '''[[Kerbol System]]'''. Five planets are known to orbit it: '''[[Moho]]''', '''[[Eve]]''', '''[[Kerbin]]''', '''[[Duna]]''' and '''[[Jool]]''' and two dwarf planets '''[[Eeloo]]''' and '''[[Dres]]'''. |
| − | Compared to our own [[w:Sun|Sun]], Kerbol | + | Compared to our own [[w:Sun|Sun]], Kerbol has a 113 times lesser mass and 3 time smaller radius. Kerbol's has the temperature indicates of a [[w:K-type_main-sequence_star|K Class main sequence star]] based on its temperature, the radius of a [[w:Red_dwarf|M class star]], the luminosity of a [[w:G-type_main-sequence_star|G class star]], and the mass of a [[w:Sub-brown_dwarf|sub-brown dwarf]]. |
| − | + | Orbits just above the surface have an orbital period of 409.214 Minutes and a speed of 66.945 km/s. | |
== Reference Frames == | == Reference Frames == | ||
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* Between versions 0.7 and 0.10.1, Kerbol was a mere point of light in the skybox. | * Between versions 0.7 and 0.10.1, Kerbol was a mere point of light in the skybox. | ||
* Kerbol gained gravity in 0.12. | * Kerbol gained gravity in 0.12. | ||
| − | * | + | * Dropping below the 'surface' is still safe in 0.13.3, but a ship can break up from the extreme gravity gradients and/or be shot outwards at large fractions of c. |
| − | * Since 0.14, the “surface” of Kerbol is an invisible | + | * Since 0.14, the “surface” of Kerbol is an invisible and nearly featureless plateau that stands approximately 4500-4700 km above the nominal radius. No known way of landing on it exist because the [[Kraken]] impedes maneuvering, and the gravity reduces the TWR of all engines to below 1. One can attempt to place edited parts on the surface, but they bounce erratically at a few hundred to a few thousand m/s if they do not explode. |
| − | * While Kerbol can be reached from [[Kerbin]]'s orbit by using a [[Mun Landing#Step 2 - To The Mun|Hohmann transfer orbit]], | + | * While Kerbol can be reached from [[Kerbin]]'s orbit by using a [[Mun Landing#Step 2 - To The Mun|Hohmann transfer orbit]], doing so requires a Δv of about 8 km/s. The most efficient way to reach Kerbol from Kerbin orbit is to use a [[Tutorial:_Advanced_Orbiting#Bi-Elliptical_Transfer|bi-elliptic transfer]]. With a sufficiently-distant apoapsis, the required ΔV to sundive can be reduced to under 4 km/s at the expense of drastically-increased flight time. |
| − | * The name “Kerbol” was created by forum members and never appears in the game. Officially, the star is simply referred to as “the | + | * The name “Kerbol” was created by forum members and never appears in the game. Officially, the star is simply referred to as “the Sun," though the lead developer mentioned that its name could change once the need to differentiate it from other stars arises. |
| − | * Kerbol's Sphere of Influence is infinite | + | * Kerbol's Sphere of Influence is infinite: its orbit is inescapable, and achieving gravitation-free flight is impossible. |
| − | * Once the Kerbol apoapsis reaches a certain point, | + | * Once the Kerbol apoapsis reaches a certain point, the game will say that it 68 years to reach; this oddity occurs because because times in Kerbal Space Program are limited to 2<sup>32</sup>-1 seconds as a consequence of how numbers are handled. |
| − | * Kerbol has just under twice the surface gravity of Kerbin, but only slightly more than Eve . | + | * Kerbol has just under twice the surface gravity of Kerbin, but only slightly more than Eve. |
| − | * Kerbol's heat will always destroy a craft, even with the "No crash damage" cheat enabled | + | * Kerbol's heat will always destroy a craft, even with the "No crash damage" cheat enabled, and makes landing on Kerbol impossible. |
| − | * | + | * Squad has long-term plans for solar flares and prominences that would make a low Kerbol orbit even more dangerous.{{cn}} <!-- is this statement speculation, or an actual plan of the devs? --> |
* Kerbol's equatorial radius is almost four times that that of Jupiter. <!-- Jupiter's radius is about 67 000 km, Kerbol's radius is about 3.8 times greater --> | * Kerbol's equatorial radius is almost four times that that of Jupiter. <!-- Jupiter's radius is about 67 000 km, Kerbol's radius is about 3.8 times greater --> | ||
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<gallery> | <gallery> | ||
KerbolSurface.png | A picture taken of a probe on a close encounter with Kerbol shortly before overheating. | KerbolSurface.png | A picture taken of a probe on a close encounter with Kerbol shortly before overheating. | ||
| − | Kerbol17.png | Up close | + | Kerbol17.png | Up close the glow becomes evidently [[w:Nonagon|ennagonal]]. |
| − | Isa_kerbol.gif | ISA MapSat output for Kerbol Star (this is | + | Isa_kerbol.gif | ISA MapSat output for Kerbol Star (this map is comes with the plugin and is not based on any measured terrain data) |
Kerbolterrain.png | Elevation shown on Kerbol | Kerbolterrain.png | Elevation shown on Kerbol | ||
</gallery> | </gallery> | ||
Revision as of 01:52, 29 August 2013
Kerbol (officially called the Sun, and also known as the Star) is the central star of the Kerbol System. Five planets are known to orbit it: Moho, Eve, Kerbin, Duna and Jool and two dwarf planets Eeloo and Dres.
Compared to our own Sun, Kerbol has a 113 times lesser mass and 3 time smaller radius. Kerbol's has the temperature indicates of a K Class main sequence star based on its temperature, the radius of a M class star, the luminosity of a G class star, and the mass of a sub-brown dwarf.
Orbits just above the surface have an orbital period of 409.214 Minutes and a speed of 66.945 km/s.
Contents
Reference Frames
| Time warp | Minimum Altitude |
|---|---|
| 1× | Any |
| 5× | 3 270 000 m |
| 10× | 3 270 000 m |
| 50× | 6 540 000 m |
| 100× | 13 080 000 m |
| 1 000× | 26 160 000 m |
| 10 000× | 52 320 000 m |
| 100 000× | 65 400 000 m |
All Kerbol orbits are in an inertial reference frame. In the old demo, getting close enough to experience the lower maximum time warps results Deep Space Kraken attacks.
Trivia
- Between versions 0.7 and 0.10.1, Kerbol was a mere point of light in the skybox.
- Kerbol gained gravity in 0.12.
- Dropping below the 'surface' is still safe in 0.13.3, but a ship can break up from the extreme gravity gradients and/or be shot outwards at large fractions of c.
- Since 0.14, the “surface” of Kerbol is an invisible and nearly featureless plateau that stands approximately 4500-4700 km above the nominal radius. No known way of landing on it exist because the Kraken impedes maneuvering, and the gravity reduces the TWR of all engines to below 1. One can attempt to place edited parts on the surface, but they bounce erratically at a few hundred to a few thousand m/s if they do not explode.
- While Kerbol can be reached from Kerbin's orbit by using a Hohmann transfer orbit, doing so requires a Δv of about 8 km/s. The most efficient way to reach Kerbol from Kerbin orbit is to use a bi-elliptic transfer. With a sufficiently-distant apoapsis, the required ΔV to sundive can be reduced to under 4 km/s at the expense of drastically-increased flight time.
- The name “Kerbol” was created by forum members and never appears in the game. Officially, the star is simply referred to as “the Sun," though the lead developer mentioned that its name could change once the need to differentiate it from other stars arises.
- Kerbol's Sphere of Influence is infinite: its orbit is inescapable, and achieving gravitation-free flight is impossible.
- Once the Kerbol apoapsis reaches a certain point, the game will say that it 68 years to reach; this oddity occurs because because times in Kerbal Space Program are limited to 232-1 seconds as a consequence of how numbers are handled.
- Kerbol has just under twice the surface gravity of Kerbin, but only slightly more than Eve.
- Kerbol's heat will always destroy a craft, even with the "No crash damage" cheat enabled, and makes landing on Kerbol impossible.
- Squad has long-term plans for solar flares and prominences that would make a low Kerbol orbit even more dangerous.[citation needed]
- Kerbol's equatorial radius is almost four times that that of Jupiter.
Gallery
A picture taken of a probe on a close encounter with Kerbol shortly before overheating.
Up close the glow becomes evidently ennagonal.
ISA MapSat output for Kerbol Star (this map is comes with the plugin and is not based on any measured terrain data)
Elevation shown on Kerbol
Changes
- Art pass.
- Actual model added, new sprite/flare effect, size changed.
- Added solid surface (featureless invisible plateau ~4500-4700 km above nominal radius).
- Added Gravity, nominal radius of 65,400 km.
- Made it possible to reach Kerbol.
- Initial Release.
