Difference between revisions of "Kerbin"

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(See Also: Removing Locations transclusion. We already have one of these!)
m (Orbital Characteristics: Changed semi-major axis (m and A.U.) to 0.17 observed value)
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*[http://en.wikipedia.org/wiki/Focus_(geometry) Parent Body]: [[Kerbol]]
*[http://en.wikipedia.org/wiki/Focus_(geometry) Parent Body]: [[Kerbol]]
*[http://en.wikipedia.org/wiki/Semi-major_axis Semi-Major Axis]: 13,599,840,256m or 0.0909092385 [http://en.wikipedia.org/wiki/Astronomical_unit Astronomical Units (A.U.)]
*[http://en.wikipedia.org/wiki/Semi-major_axis Semi-Major Axis]: 13,338,240,256 m or 0.089160629 [http://en.wikipedia.org/wiki/Astronomical_unit Astronomical Units (A.U.)]
*[http://en.wikipedia.org/wiki/Orbital_speed Velocity]: 9284.5 m/s
*[http://en.wikipedia.org/wiki/Orbital_speed Velocity]: 9284.5 m/s

Revision as of 07:41, 24 September 2012

Kerbin as seen from orbit in version 0.15.2
A projection map of Kerbin, as of 0.14.1 and before (including the demo)
An accurate full-colour projection map of Kerbin as of 0.14.2 and above

Kerbin is the planet where the Space Center is located and the main focus of Kerbal Space Program. It has two moons, named Mun and Minmus. It orbits the M class star Kerbol.


Planet Characteristics
Equatorial Radius 600 km
Mass 5.29e22 kg
Density 58.467 g/cm^3
Surface Gravity 9.81 m/s² or 1 g
Gravity @ Launchpad 9.7535 m/s²
Gravitational parameter 3.5316e12 m³/s²
Escape velocity @ Surface 3430.40 m/s
Sidereal Rotation Period 6 Hours
Solar Day 6 Hours, 51 Sec.
Kerbosynchronous Orbit alt 2868.4 km
Kerbostationary Orbit 1008.9 m/s

Orbital Characteristics


Kerbin has a roughly equal distribution of liquid water and solid land, with polar icecaps and scattered deserts. Between versions 0.7 and 0.14.1 (Including the current demo version of 0.13.3), some mountain ranges exceeded 600 m in height. The highest point was at approximately 900 m altitude.[1] In registered versions 0.14.2 and later, a new terrain engine has resulted in mountains exceeding 3 km high. The tallest mountain at least 3750 m.[[2]]


Kerbin has an atmosphere of unknown composition, though because Kerbin has plants and animals, it can be assumed there is O2, N2, and CO2. The atmosphere gets exponentially less dense as altitude increases (5 km scale height), and ends at 69,077.55 meters. [3][4]

Pressure == exp(-alt(m)/5000) [units needed]
Density == 1.2223*exp(-alt(m)/5000)  [units needed]

As of 0.15.2, atmospheric temperature varies with altitude in a roughly Earth-like manner.[5]

Natural Satellites

In 0.12+ , Kerbin had a single moon, The Mün. With 0.15, Kerbin has a second satellite, Minmus.

Reference Frames

Paid (0.17) Demo (0.13.3)
Rotational/Inertial transition 100,000 m 70,000 m
Warp Minimum Altitude
1x Any
2x n/a 0 m
5x 69,078 m (above the atmosphere)
10x 69,078 m (above the atmosphere)
50x 120,000 m 150,000 m
100x 240,000 m 300,000 m
1,000x 480,000 m 600,000 m
10,000x 480,000 m 1,200,000 m
100,000x 600,000 m n/a

See Also