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37 Geminorum

37 Geminorum
Observation data
Epoch J2000      Equinox J2000
Constellation Gemini
Right ascension 06h 55m 18.66671s[1]
Declination +25° 22′ 32.5038″[1]
Apparent magnitude (V) 5.74[2]
Characteristics
Spectral type G0 V[3]
U−B color index +0.01[4]
B−V color index 0.573±0.010
Astrometry
Radial velocity (Rv)−14.94±0.15[5] km/s
Proper motion (μ) RA: −37.882[1] mas/yr
Dec.: +24.211[1] mas/yr
Parallax (π)57.2425 ± 0.1005 mas[1]
Distance57.0 ± 0.1 ly
(17.47 ± 0.03 pc)
Absolute magnitude (MV)4.56[2]
Details
Mass1.146[5] M☉
Radius1.04+0.04
−0.08[1] R☉
Luminosity1.310+0.003
−0.004[1] L☉
Surface gravity (log g)4.29[3] cgs
Temperature6060+235
−118[1] K
Metallicity [Fe/H]−0.25[6] dex
Rotation25.0 d[7]
Rotational velocity (v sin i)1.89[8] km/s
Age5.49[9] Gyr
Other designations
BD+25°1496, GJ 252, HD 50692, HIP 33277, HR 2569, SAO 78866[10]
Database references
SIMBADdata

37 Geminorum is a solitary[11] Sun-like star located at the northwest part of the northern constellation of Gemini, about three degrees to the east of the bright star Epsilon Geminorum.[12] The apparent visual magnitude of 37 Geminorum is 5.74,[2] which is just bright enough to be visible to the naked eye on a dark night. It is located at a distance of 57 light years from the Sun based on parallax.[1] This star is drifting closer with a radial velocity of −15 km/s, and is predicted to come as near as 13.8 light-years in approximately a million years.[5] It is positioned close enough to the ecliptic to be subject to lunar occultations, such as happened on April 8, 1984.[13]

  1. ^ a b c d e f g h i Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).
  2. ^ a b c Cite error: The named reference Anderson_Francis_2012 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Gray2006 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Mermilliod1986 was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference Bailer_et_al_2018 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Holmberg2009 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Judge_et_al_2020 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference MartínezArnáiz2010 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference aj143_6_135 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Fuhrmann_et_al_2017 was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference Sinnott_Perryman_1997 was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference Shaimukhametov_Rizvanov_1998 was invoked but never defined (see the help page).
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