Difference between revisions of "Vall"

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{{:Vall/Data}}
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{{Infobox/Body}}
  
'''Vall''' is one of the five [[w:Natural_satellite|natural satellites]] of [[Jool]].  Like the other large Joolian moons, Vall is tidally locked. Synchronous orbits around Vall are not possible, as they would lie outside of its SOI, at a radius of 3,893,254 meters.
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'''Vall''' is the second of the five [[w:Natural satellite|natural satellites]] of [[Jool]].  Like the other large Joolian moons, [[Laythe]] and [[Tylo]] (of which Vall is the smallest), Vall is tidally locked to its parent. Synchronous orbits around Vall are not possible, as they would lie outside of its [[Sphere of influence|SOI]], at a radius of 3,893,254 meters.
  
Vall is KSP's analog to Jupiter's moon [[w:Europa_%28moon%29|Europa]].
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Vall is KSP's analog to Jupiter's moon [[w:Europa (moon)|Europa]].
  
Though the bodies have topical similarities, landing on Vall and returning is significantly more challenging than a landing on the [[Mün]], due to the former's higher gravity and more uneven terrain.
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Though the bodies have topical similarities, landing on Vall and returning is significantly more challenging than a landing on the [[Mün]], due to the former's higher gravity, more uneven terrain and distance from [[Kerbin]].
  
 
According to former developer NovaSilisko, Vall was planned to be made more like [[Eeloo]], with cracks in the ice and a more chaotic surface than in 0.20.2.<ref>[http://forum.kerbalspaceprogram.com/threads/29807-Planet-Ideas-And-Names-For-The-Future-Of-Kerbal-Space-Program?p=447959&viewfull=1#post447959 Post in the forum] by NovaSilisko</ref>
 
According to former developer NovaSilisko, Vall was planned to be made more like [[Eeloo]], with cracks in the ice and a more chaotic surface than in 0.20.2.<ref>[http://forum.kerbalspaceprogram.com/threads/29807-Planet-Ideas-And-Names-For-The-Future-Of-Kerbal-Space-Program?p=447959&viewfull=1#post447959 Post in the forum] by NovaSilisko</ref>
  
== Topology ==
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== In-game Description ==
  
Vall has an icy surface which is dominated by hilly lowland areas separated by mountain ridges, and ranges in elevation from 0 to 7976 m. There are almost no completely level areas, making it hard to find good landing spots.  
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{{Quote
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|Vall was one of the last Moons of Jool to be discovered. Frustrated scientists kept attempting to wipe it off the lenses of their telescopes. Eventually after a rash of returned telescopes, Advanced Optics Co. finally decided to just tell them it was an actual object in the sky.
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|[[Kerbal Astronomical Society]]}}
  
Vall has some circular mountain ridges which could be remnants of impact craters, but they are heavily eroded, hinting that Vall has some geological activity, presumably in the form of cryovolcanism.
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== Topography ==
 +
 
 +
Vall has an icy surface dominated by hilly lowland areas separated by mountain ridges and which ranges in elevation from 0 to 7976 m. There are almost no completely level areas, making it hard to find good landing spots.
 +
 
 +
Vall has some circular mountain ridges which could be remnants of impact craters, but they are heavily eroded, hinting that Vall has some geological activity, presumably in the form of [[w:Cryovolcano|cryovolcanism]].
  
 
The surface color ranges between white and light blue. When terrain scatters are activated, large boulders with contrast-rich black and white surface patterns can be found on the surface.
 
The surface color ranges between white and light blue. When terrain scatters are activated, large boulders with contrast-rich black and white surface patterns can be found on the surface.
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== Biomes ==
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Vall has 9 [[biome]]s. It has mostly large Lowlands broken up by Midlands and Highlands with some high Mountains in between. There are four distinct Basins and Poles available as well.
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=== Biome list ===
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{{Biome list|
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* Poles
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* Highlands
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* Midlands
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* Lowlands
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* Mountains
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* Northeast Basin
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* Northwest Basin
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* Southern Basin
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* Southern Valleys}}
  
 
== Reference Frames ==
 
== Reference Frames ==
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File:Vall topo compressed.png        | A topographic map of Vall made with the ISA MapSat plugin.
 
File:Vall topo compressed.png        | A topographic map of Vall made with the ISA MapSat plugin.
 
File:Vall natural bump compressed.jpg | A bump map in approximate natural colors.
 
File:Vall natural bump compressed.jpg | A bump map in approximate natural colors.
File:Vall-jool-laythe-tylo.jpg        | The surface of Vall with Jool, Laythe and Tylo in the background. Bop is also on this picture but far to small to recognise.
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File:Vall-jool-laythe-tylo.jpg        | The surface of Vall with Jool, Laythe and Tylo in the background. Bop is also barely visible on this picture - it is rising on the bottom left corner of the picture.
 
File:Vall_800_map.gif                |A topographic height map of Vall made with the ISA MapSat plugin
 
File:Vall_800_map.gif                |A topographic height map of Vall made with the ISA MapSat plugin
 
File:VallFromLaythe.png | Picture of Vall visible from Laythe
 
File:VallFromLaythe.png | Picture of Vall visible from Laythe
File:Screenshot62.png |A small probe in a high orbit over Vall
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File:Probe high above Vall.png |A small probe in a high orbit over Vall
 
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File:Landing party on Vall.jpg| A crew of kerbonauts, a lander, and a rover on the surface of Vall.
2013-08-19_00005.jpg| A crew of kerbonauts, a lander, and a rover on the surface of Vall.
 
 
</gallery>
 
</gallery>
  
 
== Trivia ==
 
== Trivia ==
 
* According to the Tracking Station information of Vall, it was one of the last moons of Jool to be discovered. This was because the Kerbal astronomers mistook the icy moon for a smudge. After multiple failed attempts to get rid of the "smudge", they figured out it was, in fact, a moon.
 
* According to the Tracking Station information of Vall, it was one of the last moons of Jool to be discovered. This was because the Kerbal astronomers mistook the icy moon for a smudge. After multiple failed attempts to get rid of the "smudge", they figured out it was, in fact, a moon.
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* If N-body simulation was used in the game, Vall would be slingshotted out of the Joolian system within a few days, due to the gravitational influences of nearby Laythe and Tylo.
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* In the game loading screen, one of the phrases say "Sending Val to Vall" which refer to Valentina Kerman as Val.
 
== Changes ==
 
== Changes ==
;{{Version|0.17|}}
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;[[1.2]]
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* Added biomes
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;[[0.90]]
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* Added biomes
 +
;[[0.17]]
 
* Initial Release
 
* Initial Release
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== Notes ==
 
== Notes ==
 
<references />
 
<references />

Revision as of 19:33, 6 November 2018

Vall
Vall
Vall as seen from orbit.
Moon of Jool
Orbital Characteristics
Semi-major axis 43 152 000 m [Note 1]
Apoapsis 43 152 000 m [Note 1]
Periapsis 43 152 000 m [Note 1]
Orbital eccentricity 0
Orbital inclination 0 °
Argument of periapsis 0 °
Longitude of the ascending node 0 °
Mean anomaly 0.9 rad (at 0s UT)
Sidereal orbital period 105 962 s
4 d 5 h 26 m 2.1 s
Synodic orbital period 106 069.5 s
Orbital velocity 2 559 m/s
Longest time eclipsed 4 706 s
Physical Characteristics
Equatorial radius 300 000 m
Equatorial circumference 1 884 956 m
Surface area 1.1309734×1012 m2
Mass 3.1087655×1021 kg
Standard gravitational parameter 2.0748150×1011 m3/s2
Density 27 487.522 kg/m3
Surface gravity 2.31 m/s2 (0.235 g)
Escape velocity 1 176.10 m/s
Sidereal rotation period 105 962.09 s
4 d 5 h 26 m 2.1 s
Sidereal rotational velocity 17.789 m/s
Synchronous orbit 3 593.20 km
Sphere of influence 2 406 401.4 m [Note 1]
Atmospheric Characteristics
Atmosphere present No
Scientific multiplier
Surface 12
Splashed N/A
Near space 9
Outer space 8
Recovery 8

  1. 1.0 1.1 1.2 1.3 The distances are given from the body's center, not from the surface (unlike ingame)

Vall is the second of the five natural satellites of Jool. Like the other large Joolian moons, Laythe and Tylo (of which Vall is the smallest), Vall is tidally locked to its parent. Synchronous orbits around Vall are not possible, as they would lie outside of its SOI, at a radius of 3,893,254 meters.

Vall is KSP's analog to Jupiter's moon Europa.

Though the bodies have topical similarities, landing on Vall and returning is significantly more challenging than a landing on the Mün, due to the former's higher gravity, more uneven terrain and distance from Kerbin.

According to former developer NovaSilisko, Vall was planned to be made more like Eeloo, with cracks in the ice and a more chaotic surface than in 0.20.2.[1]

In-game Description

Vall was one of the last Moons of Jool to be discovered. Frustrated scientists kept attempting to wipe it off the lenses of their telescopes. Eventually after a rash of returned telescopes, Advanced Optics Co. finally decided to just tell them it was an actual object in the sky.

Kerbal Astronomical Society

Topography

Vall has an icy surface dominated by hilly lowland areas separated by mountain ridges and which ranges in elevation from 0 to 7976 m. There are almost no completely level areas, making it hard to find good landing spots.

Vall has some circular mountain ridges which could be remnants of impact craters, but they are heavily eroded, hinting that Vall has some geological activity, presumably in the form of cryovolcanism.

The surface color ranges between white and light blue. When terrain scatters are activated, large boulders with contrast-rich black and white surface patterns can be found on the surface.

Biomes

Vall has 9 biomes. It has mostly large Lowlands broken up by Midlands and Highlands with some high Mountains in between. There are four distinct Basins and Poles available as well.

Biome list

Vall In-game biome map as of 1.2
  • Poles
  • Highlands
  • Midlands
  • Lowlands
  • Mountains
  • Northeast Basin
  • Northwest Basin
  • Southern Basin
  • Southern Valleys

Reference Frames

Time warp Minimum Altitude
Any
5× 24 500 m
10× 24 500 m
50× 24 500 m
100× 40 000 m
1 000× 60 000 m
10 000× 80 000 m
100 000× 100 000 m

Gallery

Trivia

  • According to the Tracking Station information of Vall, it was one of the last moons of Jool to be discovered. This was because the Kerbal astronomers mistook the icy moon for a smudge. After multiple failed attempts to get rid of the "smudge", they figured out it was, in fact, a moon.
  • If N-body simulation was used in the game, Vall would be slingshotted out of the Joolian system within a few days, due to the gravitational influences of nearby Laythe and Tylo.
  • In the game loading screen, one of the phrases say "Sending Val to Vall" which refer to Valentina Kerman as Val.

Changes

1.2
  • Added biomes
0.90
  • Added biomes
0.17
  • Initial Release

Notes

  1. Post in the forum by NovaSilisko