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Eve as seen from orbit.
Planet of Kerbol
Orbital Characteristics
Semi-major axis 9 832 684 544 m [Note 1]
Apoapsis 9 931 011 387 m [Note 1]
Periapsis 9 734 357 701 m [Note 1]
Orbital eccentricity 0.01
Orbital inclination 2.1 °
Argument of periapsis 0 °
Longitude of the ascending node 15 °
Mean anomaly 3.14 rad (at 0s UT)
Sidereal orbital period 5 657 995 s
261 d 5 h 39 m 55.1 s
Synodic orbital period 14 687 035.5 s
Orbital velocity 10 811 - 11 029 m/s
Physical Characteristics
Equatorial radius 700 000 m
Equatorial circumference 4 398 230 m
Surface area 6.1575216×1012 m2
Mass 1.2243980×1023 kg
Standard gravitational parameter 8.1717302×1012 m3/s2
Density 85 219.677 kg/m3
Surface gravity 16.7 m/s2 (1.701 g)
Escape velocity 4 831.96 m/s
Sidereal rotation period 80 500.000 s
3 d 4 h 21 m 40 s
Solar day 81 661.857 s
3 d 4 h 41 m 1.9 s
Sidereal rotational velocity 54.636 m/s
Synchronous orbit 10 328.47 km
Sphere of influence 85 109 365 m [Note 1]
Atmospheric Characteristics
Atmosphere present ✓ Yes
Atmospheric pressure 506.625 kPa
5 atm
Atmospheric height 90 000 m
5.0×10-6 atm
Temperaturemin -113.13 °C 160.02 K
Temperaturemax 146.85 °C 420 K
Oxygen present × No
Scientific multiplier
Surface 8
Splashed 8
Lower atmosphere 6
Upper atmosphere 6
Near space 7
Outer space 5
Recovery 5

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

Eve is the second planet from Kerbol, the closest planet to Kerbin, and KSP's analogue for the planet Venus. It has one small moon: a captured asteroid called Gilly. It is especially notable for its extremely thick, dense atmosphere, which makes aerobraking and returning two of the most dangerous activities in the game. Additionally, Eve has the greatest surface gravity of all the planets, and the second highest escape velocity, second only to Jool.

In-game description

Eve is certainly the purplest object in the solar system. It’s one of the larger, most visible objects, mainly because of its very, very purple tint.

It is considered by some to be almost a sister planet to Kerbin. Well, despite the purple, and the toxic atmosphere, and the extreme press- ures and temperatures. Actually, it’s not very similar at all is it? Who are those people?''

Kerbal Astronomical Society


The surface of Eve looks not unlike that of Saturn's largest moon, Titan. It has several oceans, among which lie large, flat continents. The terrain has a few mountain peaks but mostly consists of rolling hills that resemble purple sand dunes. These are speckled with small boulders, no doubt worn down by Eve's pressure, temperature, and winds. Eve's surface is covered with craters. Eve's highest mountain range has a peak of 7526 m.


Eve has an extremely dense atmosphere with a mass of approximately 1.9×1017 kilograms, a sea level pressure of 506.625 kilopascals (5 atmospheres), and a depth of 90,000 meters. Compared to the atmosphere of Kerbin, Eve's atmosphere has 4 times the mass and 5 times the sea level pressure. At an altitude of 14,579 m on Eve, the atmospheric pressure is the same as at sea level on Kerbin (1 atm). The pressure at the top of Eve's highest mountain peak is 2.4 atm.

The average molecular weight of Eve air is 43 g/mol, and its adiabatic index is 1.20. Although the composition of Eve's atmosphere is unknown these values suggest that it may consist largely of carbon dioxide. Another possibility is that the atmosphere is filled with ethane gas (C2H6, with a heat capacity of 1.2 and a molecular weight of 30 g/mol) and other compounds. If we assume LiquidFuel is kerosene, the joke that the lakes of Eve are LiquidFuel is strengthened by the purple colour since it is often mixed with a purple dye prior to sale. With a thick atmosphere filled with hydrocarbons, it's easy to imagine reactions that would yield compounds such as RP-1, the grade of kerosene used as rocket fuel. An atmosphere of 90% CO2 and 10% C2H6 would have molecular weights and adiabatic indexes close to what is seen on Eve, though there are other combinations of gases that would work as well.

Altitude (m) Pressure (Pa) Pressure (atm)
0 506 625 5.000
2 500 403 913 3.986
5 000 316 277 3.121
7 500 242 677 2.395
10 000 182 072 1.797
12 500 133 423 1.317
15 000 95 689 0.944
20 000 44 335 0.438
25 000 18 073 0.178
30 000 8 233 0.081
35 000 5 196 0.051
40 000 3 500 0.035
50 000 121.8 0.001
60 000 23.00 0.000
70 000 4.344 0.000
80 000 0.8205 0.000
90 000 0 0.000

The surface of Eve is very hot, with a globally averaged sea level temperature of approximately 135 °C. Except for a small inversion layer between 50-60 km at low latitudes, air temperatures decrease with increasing altitude up to an altitude of 70 km. Above 70 km, the rarified atmosphere warms as altitude increases. Despite the hot surface temperatures, the lack of a stratosphere means that Eve's atmosphere is cooler than Kerbin's at altitudes above ≈26.5 km. The temperature rise above 70 km suggests the presence of a thermosphere.

Air temperatures vary with latitude and time of day. At the equator, sea level temperatures vary between a nighttime low of 147 °C and a daytime high of 156 °C. At the poles, the temperature varies between 87 °C and 95 °C. Since Eve has no axial tilt, there are no seasonal temperature variations.

Atmospheric flight

Parachutes work very effectively in Eve's dense atmosphere. A vehicle in Kerbin's atmosphere would require 3 times as much parachute area to attain the same descent rate on Eve.

Because of Eve's high atmospheric pressure, rocket engines perform poorly at low altitudes. The engines best suited for low altitude use on Eve are the Aerospike, Vector, and Mammoth.

Jet engines do not function in Eve's atmosphere since it contains no oxygen — they make noise and consume fuel, but they produce no thrust. Planes with other propulsion methods do, however, work very well, and are a great way to explore the planet. They work best between 35 km and 25 km where the atmosphere generates enough lift to glide and steer, but not enough drag to slow the aircraft excessively.


Eve is one of only three celestial bodies with oceans, alongside Kerbin and Laythe.


Eve's orbit and atmosphere have a science multiplier of 7, which is rather average. But the surface has a multiplier of 12, which is the third highest science multiplier in the Kerbol System. Eve has 15 Biomes with their own science to be collected. Its main features are a large Explodium Sea with some scattered Islands and Shallow areas as well as a Main Continent and Poles. Within the Continent lie three large bodies of liquid, one being a Crater Lake. There are also areas covered with Impact Ejecta.

Biome list

Natural satellites

Eve's only natural satellite is the tiny captured asteroid Gilly in a highly eccentric and inclined orbit. Gilly is the smallest celestial body in the Kerbol system and has the lowest surface gravity of any celestial body.

Orbital statistics

The combination of high gravity and thick atmosphere makes return missions from the sea level of Eve very difficult. It requires about 7,000-7,500 m/s of delta-v to get into orbit from sea level. Driving to and launching from the peak of one of Eve's mountains can drastically reduce the amount of delta-V required (thus allowing successful launches with significantly lighter rockets). The highest peak on Eve since version 0.21.1 is 7540 m high, found near (25° S, 158.5° W)