K2-187

K2-187[1]
Observation data
Epoch J2000      Equinox J2000
Constellation Cancer
Right ascension 08h 50m 05.67s
Declination +23° 11′ 33.36″
Apparent magnitude (V) 12.864 (Kepler magnitude)[2]
Characteristics
Spectral type G
Astrometry
Proper motion (μ) RA: -11.864 mas/yr
Dec.: -30.702 mas/yr
Parallax (π)2.9939 ± 0.0510 mas[3]
Distance1,090 ± 20 ly
(334 ± 6 pc)
Details
Mass0.966999 +0.025227
−0.024169[1] M☉
Radius0.894913 +0.041087
−0.025505[1] R☉
Temperature5477 ± 50[2] K
Metallicity [Fe/H]+0.26 ± 0.08[2] dex
Other designations
EPIC 212157262, K2-187, WISE J085005.65+231133.0, 2MASS J08500566+2311333
Database references
SIMBADdata

K2-187, also known as EPIC 212157262, is a Sun-like star in K2 Campaign 5. It is very close in size and temperature to the Sun, and has a system of four confirmed exoplanets ranging between 1.4 R🜨 and 3.2 R🜨. The innermost planet takes just 18 hours to orbit its star, while the outermost planet orbits every 2 weeks.[2]

  1. ^ a b c "K2-187 PLANET HOST OVERVIEW PAGE". NASA Exoplanet Archive. Retrieved 2018-03-05.
  2. ^ a b c d "Andrew W. Mayo" (PDF).
  3. ^ Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.