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Dres

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Dres
Dres
Dres as seen from orbit.
Dwarf planet of Kerbol
Orbital Characteristics
Semi-major axis 40 839 348 203 m [Note 1]
Apoapsis 46 761 053 692 m [Note 1]
Periapsis 34 917 642 714 m [Note 1]
Orbital eccentricity 0.14
Orbital inclination 5 °
Argument of periapsis 90 °
Longitude of the ascending node 280 °
Mean anomaly 3.14 rad (at 0s UT)
Sidereal orbital period 47 893 063 s
2 217 d 1 h 37 m 43.1 s
Synodic orbital period 11392903.3 s
Orbital Velocity 4 630 to 6 200 m/s
Physical Characteristics
Equatorial radius 138 000 m
Equatorial Circumference 867 080 m
Surface area 2.3931396×1011 m2
Mass 3.2191322×1020 kg
Standard gravitational parameter 2.1484489×1010 m3/s2
Density 29 242.396 kg/m3
Surface gravity 1.13 m/s2 (0.115 g)
Escape velocity 558.00 m/s
Sidereal rotation period 34 800.000 s
1 d 3 h 40 m 0 s
Solar day 34 825.305 s
1 d 3 h 40 m 25.3 s
Sidereal rotational velocity 24.916 m/s
Synchronous orbit 732.24 km
Sphere of influence 32 832 840 m[Note 1]
Atmospheric Characteristics
Atmosphere present × No
Scientific multiplier
Surface 8
Near space 7
Outer space 6

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

Dres is the fifth planet in the Kerbol star system. It is located between Duna and Jool in a somewhat eccentric and inclined orbit. It is considered to be the Ceres analog for the game. It is similar to Moho and Eeloo in that it has no atmosphere and no natural satellites (aside from a ring system of asteroids). Dres has the least gravity of any planet in the Kerbol system. Dres is considered a dwarf planet by the game because it has not "cleared its neighborhood"; in other terms, it has asteroids in close proximity.

In-game Description

Dres is a very small planet. It was the first planet considered to be a dwarf. Its orbit is highly irregular and, together with its size, it took a long time to discover since half the time it was not where scientists expected to find a planet.

Due to its nature of frequenting the bad parts of space, this dwarf planet was officially labeled as Not to be trusted by the scientific community.

Kerbal Astronomical Society

Geography

The surface of Dres appears light grey and is rocky and uneven, similar to that of Mun, with a surface covered in regolith rubble. Unlike Mün, Dres has large patches of what appears to be ice. The highest points are just under 5.7 km in altitude. One notable geographic feature is a canyon just south of the equator, which is several kilometers deep.

Cratering

The surface of Dres has several craters. However, unlike other planetary bodies, none are very prominent, the largest being slightly under 13 km in diameter.

In total, 42 craters have been positively identified. Another 5 are still waiting for confirmation. The spreading of the craters is biased to the western, particularly the northwestern, hemisphere of Dres.

Quadrant No. of craters (%) No. of Craters
North-East 19.0% 8
South-East 7.5% 4
North-West 42.9% 18
South-West 28.6% 12
Total 100% 42

Biomes

Dres has 8 biomes.

Biome list

Dres biome map as of 0.90.0
  • Poles
  • Highlands
  • Midlands
  • Lowlands
  • Ridges
  • Impact Ejecta
  • Impact Craters
  • Canyons

Interplanetary travel

From a 12 km Dres escape trajectory, the requirements for attaining an intercept trajectory of other celestials are:

Body Delta-V[1] Phase Angle[2]
Kerbol[n 1] ~5730 m/s N/A
Moho ~1510 m/s -30º
Eve ~770 m/s -205º
Kerbin ~670 m/s -330º
Duna ~530 m/s -146º
Jool ~410 m/s 52º
Eeloo ~580 m/s 69º
  1. 610 km orbit

Reference Frames

Rotational/Inertial transition 100 000 m
Warp Minimum Altitude
Any
5× 10 000 m
10× 10 000 m
50× 30 000 m
100× 50 000 m
1 000× 100 000 m
10 000× 200 000 m
100 000× 300 000 m

Gallery

→ Main article: Category:Images of Dres

Changes

1.0
  • Added "Dres-teroid" belt (will appear randomly after achieving a flyby)
0.90
  • Added biomes
0.18
  • Initial Release

Trivia

  • Dres was the subject of a Kerbal meme referring to the status of Dres as an interesting place or a boring place.
    • KSP Youtuber Felsmak created a youtube video about how Dres is boring.
    • Felsmak later made a video about how Dres is a hoax. This was a parody of the Bielefeld Conspiracy, not a serious video.
    • This had led some forumers to start the Dres Appreciation thread, and others to fight back.
    • That led to a flame war which essentially bled into unrelated forum posts.
    • Felsmak closed the thread on his Dres Hoax video, stating that "This Dres meme has gotten kinda spammy now, it seems, and I don't really want to encourage it any further."
  • According to the International Astronautical Union, Dres would be considered a planet as it does not share an orbit with any other objects.
  • The Dres-teroid belt is not an analogue of the asteroid belt, but rather a diffuse ring of debris orbiting Dres. This means that Dres actually has an unknown and variable amount of natural satellites.
    • This technically means that Dres has the most moons in the solar system.
  • Dres, Vall, Eeloo, and Moho are the only bodies in the solar system that are colored completely using a PQSMod_HeightColorMap. (Colors are based purely on the terrain height)

Notes

  1. KSP Delta V Planner
  2. Transfer calculator