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 0.145
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 11 392 903.3 s
Orbital velocity 4 630 - 6 200 m/s
Physical Characteristics
Equatorial radius 138 000 m
Equatorial circumference 867 080 m
Surface area 2.3931396×1011 m2
Mass 3.2190937×1020 kg
Standard gravitational parameter 2.1484489×1010 m3/s2
Density 29 242.045 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
Splashed N/A
Near space 7
Outer space 6
Recovery 6

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

Dres is the fifth planet in the Kerbol 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

KSP 1:

Dres is a very small planet. It was the first planet considered to be a dwarf. It’s orbit is highly irregular and together with it’s 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

KSP 2:

A dwarf planet, Dres has the gravitational pull to round itself out as it orbits the sun, but it doesn't rule its inclined, eccentric orbit like a proper planet. It is content to 'hang out' with other space objects, rather than tell them to become moons or get lost. Dres is also home to a lovely ring system and rad equatorial ridge! How unique!

Topography

In KSP1, the surface of Dres appears light grey and is rocky and uneven, similar to that of the Mun, with a surface covered in regolith rubble. Unlike the Mun, 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 which is called the "Dres Canyon" just south of the equator, which is several kilometers deep.

As with some other planets and moons, the topography of Dres is significantly different in KSP2; This version of Dres sees the introduction of an equatorial ridge. The coloration is also much different, as most of the surface is now rifle green in color, with the exception of the bright vanilla polar regions and equatorial ridge.

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 N/A 42

Ring system

KSP2 sees the introduction of a ring system around Dres. These rings are similar in color to Dres' own bright vanilla polar regions and equatorial ridge. These rings are likely a replacement for the Drestroid belt.

Biomes

Dres biome map (legend)

Dres has 8 biomes.

Biome list

Dres In-game biome map as of 1.2
  • Poles
  • Highlands
  • Midlands
  • Lowlands
  • Ridges
  • Impact Ejecta
  • Impact Craters
  • Canyons

KSP2 Surface Research Locations

Surface research locations include:

  • Craters
  • Equatorial Ridge
  • Eye of Dres
  • Lowlands
  • Highlands

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

Time 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

Kerbal Space Program

Kerbal Space Program 2

Changes

Kerbal Space Program

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

Kerbal Space Program 2

0.1.0
  • 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 Astronomical 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.
    • According to the International Astronomical Union, this technically means that Dres has the most moons in the Kerbol System, as there is not an official definition of what qualifies as a moon.
  • In KSP1, 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