Jool

Jool in 0.17.

Jool is a gas giant and the fifth planet of the Kerbolar star system.

A probe visiting the gas giant.

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

• Parent Body: Kerbol

• Semi-Major Axis: 6.87e10 m or 0.46 Astronomical Units (A.U.)

• Eccentricity: ...

• Inclination: 1.3°

• Velocity: ... m/s

• Longitude of Ascending Node: ...°

• 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

Aerobraking in Jool's atmosphere, with 2 moons visible over the horizon.

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

The ocean moon Laythe, about to eclipse Jool.

Jool has four natural satellites: the ocean moon Laythe, the ice moon Vall, the rocky moon Tylo and Bop. Laythe, Vall, and Tylo are in a Laplace resonance, with orbital periods of 1:2:4 respectively.