Kepler-37

Kepler-37

Line up comparing the planets in the Kepler-37 system to the Moon and planets in the Solar System.
Observation data
Epoch J2000      Equinox J2000
Constellation Lyra
Right ascension 18h 56m 14.30760s[1]
Declination +44° 31′ 05.3896″[1]
Apparent magnitude (V) 9.710[2]
Characteristics
Spectral type G8V
Astrometry
Radial velocity (Rv)−30.92±0.20[1] km/s
Proper motion (μ) RA: −60.396 mas/yr[1]
Dec.: 48.657 mas/yr[1]
Parallax (π)15.6253 ± 0.0105 mas[1]
Distance208.7 ± 0.1 ly
(64.00 ± 0.04 pc)
Details
Mass0.79+0.033
−0.03[3] M☉
Radius0.789+0.0064
−0.0056[3] R☉
Temperature5357±68[3] K
Metallicity [Fe/H]−0.36±0.05[3] dex
Rotational velocity (v sin i)1.1 (± 1.1)[4] km/s
Age7.6+3.4
−3.1[3] Gyr
Other designations
KOI-245, KIC 8478994,[2] TYC 3131-1199-1, BD+44 3020, 2MASS J18561431+4431052, GSC 03131-01199, Gaia DR2 2106674071344722688[5]
Database references
SIMBADdata
KICdata

Kepler-37, also known as UGA-1785,[6][7][8] is a G-type main-sequence star located in the constellation Lyra 209 light-years (64 parsecs) from Earth. It is host to exoplanets Kepler-37b, Kepler-37c, Kepler-37d and possibly Kepler-37e, all of which orbit very close to it. Kepler-37 has a mass about 80.3 percent of the Sun's and a radius about 77 percent as large.[4] It has a temperature similar to that of the Sun, but a bit cooler at 5,357 K. It has about half the metallicity of the Sun. With an age of roughly 6 billion years,[9] it is slightly older than the Sun, but is still a main-sequence star. Until January 2015, Kepler-37 was the smallest star to be measured via asteroseismology.[10]

  1. ^ a b c d e Cite error: The named reference GaiaDR3 was invoked but never defined (see the help page).
  2. ^ a b "Kepler Host Star Characteristics". Archive for Space Telescopes. STSI. 2012-02-24. Retrieved 2013-02-21.
  3. ^ a b c d e Cite error: The named reference Bonomo2023 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Nature was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Simbad was invoked but never defined (see the help page).
  6. ^ Planets in Kepler-37 star system designated ‘UGA-1785’ by NASA
  7. ^ 211 light years away, star system named for UGA
  8. ^ Kepler-37, Open Exoplanet catalogue
  9. ^ Smallest Alien Planet Kepler-37b Explained (Infographic)
  10. ^ Cite error: The named reference NASA was invoked but never defined (see the help page).