Kepler-87c

Kepler-87c
Discovery
Discovered byOfir et al.
Discovery date8 October 2013
Transit (Kepler Mission)
Orbital characteristics
0.664 AU (99,300,000 km)
Eccentricity0.039
191 d
Inclination89.588
StarKepler-87 (KOI-1574)
Physical characteristics
6.14±0.29 R🜨
Mass6.4±0.8 ME
Mean density
0.152 g/cm3 (0.0055 lb/cu in)
Temperature403 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]

Characteristics

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 makes it the first Super-puff, a planet with such low density. Its equilibrium temperature is 130 °C.[2]

References

  1. ^ a b "The Extrasolar Planet Encyclopaedia — Kepler-87c". Extrasolar Planets Encyclopaedia. Retrieved 10 September 2023.
  2. ^ Ofir, Aviv; et al. (2014). "An independent planet search in the Kepler dataset. II. An extremely low-density super-Earth mass planet around Kepler-87". Astronomy and Astrophysics. 561. A103. arXiv:1310.2064. Bibcode:2014A&A...561A.103O. doi:10.1051/0004-6361/201220935. S2CID 118691606.


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