Difference between revisions of "Jool"
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== Natural Satellites == | == Natural Satellites == | ||
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| + | Jool has four natural satellites: | ||
[[File:JoolLaythe.png|thumb|left|The ocean moon [[Laythe]], about to eclipse Jool.]] | [[File:JoolLaythe.png|thumb|left|The ocean moon [[Laythe]], about to eclipse Jool.]] | ||
| − | + | * The ocean moon [[Laythe]], which has an atmosphere and is both the largest and closest to Jool. Due to it's high orbital velocity, it is somewhat challenging to reach. | |
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| + | * The ice moon [[Vall]], which is the second largest and second closest. It's orbital path and velocity sit almost exactly between Layth and Tylo. | ||
| + | * The rocky moon [[Tylo]], similar to Kerbin's [[Mun]], is the third body orbiting Jool. It is perhaps the easiest of the four to reach, with a stable orbit, large gravity well, and (relatively) slow orbital velocity. | ||
| + | * The captured asteroid [[Bop]], the smallest body orbiting Jool. Due to it's distant, erratic orbit and low gravity, it is also challenging to reach. | ||
| + | Laythe, Vall, and Tylo are in a Laplace resonance, with orbital periods of 1:2:4 respectively. | ||
| + | ---- | ||
{{Celestial Bodies}} | {{Celestial Bodies}} | ||
[[Category:Celestials]] | [[Category:Celestials]] | ||
Revision as of 17:08, 21 September 2012
Jool is a gas giant and the fifth planet of the Kerbolar star system.
Characteristics
- Equatorial Radius: 6000 km
- Mass: 4.236e24 kg
- Density: 4.68 g/cm³
- Surface Gravity: 7.84 m/s² (0.8 Gs)
- Gravitational parameter: 2.8254e14 m³/s²
- Escape velocity from surface: 9704 m/s
- Sidereal Rotation Period: ... hours; Rotation: ... degrees per hour, or ... m/s at the equator
- Solar Day: ... hours, or ... hours, ... seconds.
- Synchronous Orbit altitude: ... km; Stationary Orbit velocity: ... m/s
Orbital Characteristics
- Semi-Major Axis: 6.87e10 m or 0.46 Astronomical Units (A.U.)
- Eccentricity: ...
- Inclination: 1.3°
- Velocity: ... m/s
- Argument of Periapsis: ...°
- Mean Anomaly at Epoch UT = ...
- Orbital Period: ... hours, or ... Earth days
- Sphere of influence: 2,455,985 km, or 409 body radii.
Atmosphere
Although Jool has a radius 10x bigger than Kerbin, its atmosphere only begins roughly twice as high (140 km). It is also extremely dense, well suited for aerobraking from a high-speed inter-planetary intercept.
Natural Satellites
Jool has four natural satellites:
The ocean moon Laythe, about to eclipse Jool.
- The ocean moon Laythe, which has an atmosphere and is both the largest and closest to Jool. Due to it's high orbital velocity, it is somewhat challenging to reach.
- The ice moon Vall, which is the second largest and second closest. It's orbital path and velocity sit almost exactly between Layth and Tylo.
- The rocky moon Tylo, similar to Kerbin's Mun, is the third body orbiting Jool. It is perhaps the easiest of the four to reach, with a stable orbit, large gravity well, and (relatively) slow orbital velocity.
- The captured asteroid Bop, the smallest body orbiting Jool. Due to it's distant, erratic orbit and low gravity, it is also challenging to reach.
Laythe, Vall, and Tylo are in a Laplace resonance, with orbital periods of 1:2:4 respectively.
