
Planets are massive celestial bodies that orbit a star or stellar remnant. They are of many different sizes and compositions. Planets may have natural satellites (
moons) and may or may not be inhabited. Every planet has a unique blurb, but most of them cannot be interacted with. Travel from planet to planet requires use of the
Galaxy Map.
Within each solar system, there will usually only be one location to land / dock. Most often this will be a planet, but it may be a moon or starship instead. Many planets can be scanned from space for minerals or other collectibles, but not landed upon. There are even asteroids containing valuable metals or other objects hidden in the belts.
- Main article: Mass Effect System Guide
For an alphabetical list of planets see Category:Planets (or the Planet Index).
Mass Effect
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Argos Rho
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Armstrong Nebula
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Artemis Tau
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Attican Beta
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Exodus Cluster
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Gemini Sigma
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Hades Gamma
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Hawking Eta
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Horse Head Nebula
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Kepler Verge
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Local Cluster
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Maroon Sea
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Pangaea Expanse
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Sentry Omega
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Serpent Nebula
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Styx Theta
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Voyager Cluster
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Mass Effect 2
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Caleston Rift
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Crescent Nebula
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Eagle Nebula
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Hades Nexus
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Hawking Eta
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Hourglass Nebula
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Ismar Frontier
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Krogan DMZ
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Local Cluster
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Minos Wasteland
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Nubian Expanse
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Omega Nebula
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Pylos Nebula
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Rosetta Nebula
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Serpent Nebula
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Shadow Sea
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Sigurd's Cradle
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The Phoenix Massing
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The Shrike Abyssal
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Titan Nebula
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Vallhallan Threshold
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Viper Nebula
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Mass Effect 3
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Aethon Cluster
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Annos Basin
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Apien Crest
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Arcturus Stream
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Argos Rho
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Athena Nebula
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Attican Beta
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Exodus Cluster
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Gemini Sigma
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Hades Gamma
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Hades Nexus
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Horse Head Nebula
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Hourglass Nebula
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Ismar Frontier
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Kepler Verge
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Kite's Nest
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Krogan DMZ
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Local Cluster
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Minos Wasteland
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Nimbus Cluster
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Ninmah Cluster
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Nubian Expanse
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Perseus Veil
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Petra Nebula
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Serpent Nebula
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Shadow Sea
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Silean Nebula
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The Shrike Abyssal
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Homeworlds
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- "Homeworlds" redirects here. For the comic series, see Mass Effect: Homeworlds.
- Dekuuna, the homeworld of the elcor.
- Earth, the homeworld of the humans.
- Irune, the homeworld of the volus.
- Kahje, the homeworld of the hanar.
- Khar'shan, the homeworld of the batarians.
- Palaven, the homeworld of the turians.
- Parnack, the homeworld of the yahg.
- Rakhana, the homeworld of the drell.
- Rannoch, the homeworld of the quarians.
- Suen, the homeworld of the rachni.
- Sur'Kesh, the homeworld of the salarians.
- Thessia, the homeworld of the asari.
- Tuchanka, the homeworld of the krogan.
- Turvess, the homeworld of the raloi.
Background Worlds
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Properties
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Mass Effect provides the radius of planets (in kilometers), and for planets with a solid surface it further provides the surface gravity (as a proportion of Earth's surface gravity). From these, it is possible to derive the mass (and density) for any planet with a surface gravity.
Isaac Newton's gravitational constant is 6.67×10-11 m3kg-1s-2 which would be 6.67×10-20 km3kg-1s-2 when dimensioned for kilometers. Earth's surface gravity, g, is 9.81 ms-2, which is 9.81×10-3 kms-2. According to Newton's Law of Universal Gravitation, the mass of any body, M, is ar2G-1, where a is gravity, r the radius, and G the gravitational constant. Since the gravity of a planetary body in Mass Effect, s, is given as a proportion of Earth's, a = sg. Therefore, given values for s (dimensionless) and r (in km), and given that the mass of the Earth is 5.9736×1024 kg, the mass of a planet will be: