|Right ascension||18h 45m 55.86s|
|Declination||+47° 12′ 28.91″|
|Apparent magnitude (V)||11.492|
|Mass||0.8  M☉|
|Radius||0.74  R☉|
|Temperature||4903  K|
|Metallicity [Fe/H]||+0.08  dex|
Kepler-102 is a star with five known planets. Kepler-102 is somewhat less luminous than the Sun.
On January 2014, a system of five planets around the star was announced, three of them being smaller than Earth. While 3 of the transit signals were discovered during the first year of Kepler mission, their small size made them hard to confirm as possibilities of these being false positives were needed to be removed. Later, two other signals were detected. Follow-up radial velocity data helped to determine the mass of the largest planet.
(in order from star)
|e||8.9±2.0 M⊕||0.116||16.1457||—||87.66°||2.22 R⊕|
- Masses, radii, and orbits of small Kepler planets: the transition from gaseous to rocky planets accessdate=8 January 2014
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