Kepler-332 b
Rocky TerrestrialUninhabitable1121 light years awayFound 2014
Kepler-332 b, from the NASA Exoplanet Archive (found 2014). Measured: 1.71 Earth masses, 0.07 AU, a 4955 K K-type star. Composition inferred from a measured bulk density of 1.07x Earth's, which is rock and iron, with a day locked to its 7.6-day year, as anything orbiting this close would be.
Kepler-332
- Type
- K-type (Orange)
- Temperature
- 4,955 K
- Radius
- 0.72 ☉
- Mass
- 0.743 ☉
- Known planets
- 3, including this one
- Luminosity
- 0.261 ☉
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
Moderate Activity
Why is this a Rocky Terrestrial?Your planet is dominated by silicate (25.0%) and iron (12.5%) 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: 25.0% + Iron: 12.5% + Magnesium: 3.8%✓ Mass: 1.7x Earth (terrestrial range)
Habitability ScoreUninhabitable
Contributing Factors
temperature5
Scorching - hot enough to melt lead, though rock stays solid; no chance for life
atmosphere70
Nitrogen atmosphere provides protection but not breathable
water8
Limited water content - boiling away, little would be retained
magnetic Field30
No magnetic field - vulnerable to solar radiation
geology90
Active geology recycles nutrients and drives carbon cycle
Organic Chemistry80
Core organic elements (CHNO) present
rotation30
Very slow rotation - extreme temperature swings between eternal day and night sides
Physical Properties
Mass
1.71x Earth (1.02e+25 kg)Radius
1.20x Earth (7,619 km)Surface Gravity
1.20x Earth (11.7 m/s²)Surface Temperature
762 K (489 °C / 912 °F)Rotation Period
183.1 hours/day (slower than Earth)Orbital Environment
Star Type
K-type (Orange)Distance from Star
0.07 AU (10.5 million km)Orbital Period
8 daysAtmosphere
Thin CO₂ and nitrogen atmosphere
Elemental Composition
O - Oxygen
31.3%
Si - Silicon
25.0%
Fe - Iron
12.5%



