Moho

Moho is the innermost planet of the Kerbol star system. It is the smallest planet, although it is not the smallest celestial body. It is the only planet known to be tidally locked to Kerbol and the only planet with no natural satellites.

Due to its close proximity to Kerbol, the atmosphere, while thin, is debilitatingly hot. Rockets overheat easily, making a high thrust-to-weight ratio and/or a heat-resistant rocket design necessary for a safe landing.

Topography

Topographical image of Moho.

The surface is very mountainous, with surprisingly few craters. The crust almost looks fractured. Up close it is much redder than in the map view and has many white dots. There are two volcanoes (Shown as red circles in the topographic map) on Moho.

Atmosphere

Moho has a very thin, very hot atmosphere that poses a heat threat to most or all rocket motors. It extends to an altitude of approximately 17,000 meters. Some aerobraking is possible, though the terrain makes this risky — even reaching an atmosphere as thin as 0.00001 atm (equivalent to 57.5 km altitude on Kerbin) requires flying at 12.5 km, below the height of Moho's tallest peaks. During dawn and dusk, the sky is bluer instead of the normal red.

Like all atmospheres in the game, Moho's atmosphere fades exponentially with increasing altitude (with a scale height of 2000 m). In general, the atmospheric pressure on Moho at an altitude expressed in meters is:

$p_{m}=0.005\ e^{-altitude/2000}$

Orbital Statistics

Geosynchronous orbit around Moho is not possible — it would require an altitude of 0.00 m, outside of Moho's sphere of influence.

For a semisynchronous orbit of ½ Moho day (307.75 hours or 1,107,882 seconds) an orbit of 0.00 m above Moho is needed with a velocity of 0.00 m/s.

Reference Frames

	Paid (0.17)
Rotational/Inertial transition	? m
Warp	Minimum Altitude
1x	0 m
5x	10,000 m
10x	10,000 m
50x	30,000 m
100x	50,000 m
1,000x	100,000 m
10,000x	200,000 m
100,000x	300,000 m

Changes

0.17

• Initial Release