GJ 1214

GJ 1214 / Orkaria

This artist's impression shows how the super-Earth orbiting the nearby star GJ 1214 may look.
Credit: ESO/L. Calçada
Observation data
Epoch J2000      Equinox J2000
Constellation Ophiuchus[1]
Right ascension 17h 15m 18.93399s[2]
Declination +04° 57′ 50.0666″[2]
Apparent magnitude (V) 14.71±0.03[3]
Characteristics
Spectral type M4.5[4]
Apparent magnitude (B) 16.40[5]
Apparent magnitude (R) 14.394 ± 0.17[5]
Apparent magnitude (I) 11.52 ± 0.03[3]
Apparent magnitude (J) 9.750±0.024[6]
Apparent magnitude (H) 9.094±0.024[6]
Apparent magnitude (K) 8.782±0.020[6]
B−V color index 1.73[7]
V−R color index 0.9
R−I color index 2.7
Variable type planetary transit[8]
Astrometry
Radial velocity (Rv)+20.91±0.65[2] km/s
Proper motion (μ) RA: 580.202 mas/yr[2]
Dec.: −749.713 mas/yr[2]
Parallax (π)68.2986 ± 0.0652 mas[2]
Distance47.75 ± 0.05 ly
(14.64 ± 0.01 pc)
Absolute magnitude (MV)14.10
Details
Mass0.181±0.005[9] M☉
Radius0.204±0.0085[9] R☉
Luminosity0.00351±0.00010[9] L☉
Surface gravity (log g)4.991±0.029[8] cgs
Temperature3,111+69
−66[9] K
Metallicity [Fe/H]0.11±0.09[9] dex
Rotation125±5 d[10]
Age5–10[11] Gyr
Other designations
Orkaria, GJ 1214, G 139-21, LHS 3275, LSPM J1715+0457, NLTT 44431, TIC 467929202, 2MASS J17151894+0457496[5]
Database references
SIMBADdata
Exoplanet Archivedata
ARICNSdata
Extrasolar Planets
Encyclopaedia		data

GJ 1214 (sometimes Gliese 1214) is a dim M4.5[4] red dwarf star in the constellation Ophiuchus with an apparent magnitude of 14.7.[3] It is located at a distance of 47.8 light-years (14.7 parsecs) from Earth.[12] GJ 1214 hosts one known exoplanet.[8]

  1. ^ Cite error: The named reference Roman1987 was invoked but never defined (see the help page).
  2. ^ a b c d e Cite error: The named reference GaiaDR3 was invoked but never defined (see the help page).
  3. ^ a b c Cite error: The named reference Berta2011 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Rojas-Ayala2010 was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference Simbad was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference Skrutskie2006 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference van Altena1995 was invoked but never defined (see the help page).
  8. ^ a b c Cite error: The named reference Charbonneau2009 was invoked but never defined (see the help page).
  9. ^ a b c d e Cite error: The named reference Pineda2021 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Mallonn2018 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Lalitha2014 was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference Anglada-Escudé2012 was invoked but never defined (see the help page).