TOI-6008 b
Rocky TerrestrialUninhabitable75 light years awayFound 2024
TOI-6008 b, from the NASA Exoplanet Archive (found 2024). Measured: 4 Earth masses, 0.0108 AU, a 3075 K M-type star. Composition inferred from a measured bulk density of 3.66x Earth's, far too high for silicates alone — an iron-rich world, with a day locked to its 0.9-day year, as anything orbiting this close would be.
TOI-6008
- Type
- M-type (Red Dwarf)
- Spectral type
- M5.0
- Temperature
- 3,075 K
- Radius
- 0.242 ☉
- Mass
- 0.23 ☉
- Known planets
- 1 (this one)
- Luminosity
- 4.69e-3 ☉
Published by the NASA Exoplanet Archive. This world’s temperature and habitability score are computed from this star’s measured luminosity, not from a stand-in for its class.
Rocky Terrestrial
Magnetic FieldHigh Activity
Why is this a Rocky Terrestrial?Your planet is dominated by silicate (36.6%) and iron (24.4%) content, forming a rocky terrestrial body.
Rocky terrestrial planets are primarily composed of silicate rocks and metals. They're the most common type of small planet in the universe.
Classification Criteria:
✓ Silicon: 36.6% + Iron: 24.4% + Magnesium: 12.2%✓ Mass: 4.0x Earth (terrestrial range)
Habitability ScoreUninhabitable
Contributing Factors
temperature5
Scorching - hot enough to melt lead, though rock stays solid; no chance for life
atmosphere10
No atmosphere - exposed to radiation and temperature extremes
water0
No water - the recipe has no hydrogen and oxygen to form it
magnetic Field100
Magnetic field provides radiation protection
geology90
Active geology recycles nutrients and drives carbon cycle
Organic Chemistry20
Limited organic chemistry potential
rotation100
Optimal rotation period - balanced day/night cycle, moderate weather, and good heat distribution
Physical Properties
Mass
4.00x Earth (2.39e+25 kg)Radius
1.59x Earth (10,113 km)Surface Gravity
1.59x Earth (15.6 m/s²)Surface Temperature
700 K (427 °C / 800 °F)Rotation Period
20.6 hours/day (faster than Earth)Orbital Environment
Star Type
M-type (Red Dwarf)Distance from Star
0.01 AU (1.62 million km)Orbital Period
1 dayTime Dilation
Clocks run 13.0 seconds per year slower than deep space — about 17 minutes over a lifetimeAtmosphere
Minimal or none
Elemental Composition
Si - Silicon
36.6%
Fe - Iron
24.4%
Mg - Magnesium
12.2%



