This article needs additional citations for
verification. (October 2013) |
Discovery | |
---|---|
Discovered by | Ofir et al. |
Discovery date | 8 October 2013 |
Transit ( Kepler Mission) | |
Orbital characteristics | |
0.664 AU (99,300,000 km) | |
Eccentricity | 0.039 |
191 d | |
Inclination | 89.588 |
Star | Kepler-87 (KOI-1574) |
Physical characteristics | |
Mean radius | 6.14±0.29 R🜨 |
Mass | 6.4±0.8 ME |
Mean
density | 0.152 g/ cm3 (0.0055 lb/cu in) |
Temperature | 403 K (130 °C; 266 °F) [1] |
Kepler-87c is a planet orbiting Kepler-87, a star slightly more massive than the Sun and nearing the end of its main-sequence period. [1]
Despite being larger than Neptune, Kepler-87c is only about 6.4 times more massive than Earth. This means that its density is only 0.152 g/cm3. This is the first planet with a comparable mass to have such a low density. Its equilibrium temperature is 130 °C. [2]
This article needs additional citations for
verification. (October 2013) |
Discovery | |
---|---|
Discovered by | Ofir et al. |
Discovery date | 8 October 2013 |
Transit ( Kepler Mission) | |
Orbital characteristics | |
0.664 AU (99,300,000 km) | |
Eccentricity | 0.039 |
191 d | |
Inclination | 89.588 |
Star | Kepler-87 (KOI-1574) |
Physical characteristics | |
Mean radius | 6.14±0.29 R🜨 |
Mass | 6.4±0.8 ME |
Mean
density | 0.152 g/ cm3 (0.0055 lb/cu in) |
Temperature | 403 K (130 °C; 266 °F) [1] |
Kepler-87c is a planet orbiting Kepler-87, a star slightly more massive than the Sun and nearing the end of its main-sequence period. [1]
Despite being larger than Neptune, Kepler-87c is only about 6.4 times more massive than Earth. This means that its density is only 0.152 g/cm3. This is the first planet with a comparable mass to have such a low density. Its equilibrium temperature is 130 °C. [2]