Kepler-32 is an M1V dwarf-type star located 1301.1 light years from Earth, in the constellation of Cygnus. Discovered in January 2012 by the Kepler spacecraft, it shows a 0.58 ± 0.05 solar mass (M☉), a 0.53 ± 0.04 solar radius (R☉), and temperature of 3900.0 K, making it half the mass and radius of the Sun, two-thirds its temperature and 5% its luminosity. It initially was known to have at least 2 planets orbiting around it, the smaller Kepler-32b, orbiting its parent star every 5.90124 days, and Kepler-32c with an orbital period of 8.7522 days. In April 2013, transit-timing variation analysis confirmed 3 other planets to be in the system. However, only very loose constraints of the maximum mass of the planets could be determined.
(in order from star)
|b||< 4.1 MJ||0.05||5.90124||—||—||2.2±0.2 R⊕|
|c||< 0.5 MJ||0.09||8.7522||—||—||2.0±0.2 R⊕|
- NBC. "100 billion alien planets fill our galaxy: study". NBC News. Retrieved 28 February 2013.
- Swift, Jonathan J. (2012). "Characterizing the Cool KOIs IV: Kepler-32 as a prototype for the formation of compact planetary systems throughout the Galaxy". The Astrophysical Journal 764: 105. arXiv:1301.0023. Bibcode:2013ApJ...764..105S. doi:10.1088/0004-637X/764/1/105.
- The Extrasolar Planet Encyclopedia. "Kepler-32". Exoplanet.eu. Retrieved 28 February 2013.
- Fabrycky, Daniel C.; et al. (2012). "Transit Timing Observations from Kepler: IV. Confirmation of 4 Multiple Planet Systems by Simple Physical Models". The Astrophysical Journal 750 (2): 114. arXiv:1201.5415. Bibcode:2012ApJ...750..114F. doi:10.1088/0004-637X/750/2/114.
- NASA Exoplanet Archive--Planet Host Overview page:Kepler-32
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