37 Geminorum

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37 Geminorum
Observation data
Epoch J2000      Equinox J2000
Constellation Gemini
Right ascension  06h 55m 18.66757s[1]
Declination +25° 22′ 32.5153 ″[1]
Apparent magnitude (V) 5.73[2]
Spectral type G0 V[3]
U−B color index +0.01[2]
B−V color index 0.599[4]
Radial velocity (Rv)-11.3[5] km/s
Proper motion (μ) RA: -35.91[1] mas/yr
Dec.: +25.65[1] mas/yr
Parallax (π)58.00 ± 0.40[1] mas
Distance56.2 ± 0.4 ly
(17.2 ± 0.1 pc)
Luminosity1.22[6] L
Surface gravity (log g)4.29[3] cgs
Temperature5,874[7] K
Metallicity [Fe/H]-0.25[7] dex
Rotational velocity (v sin i)1.89[4] km/s
Age5.49[8] Gyr
Other designations
BD +25°1496, GCTP 1613.02, Gl 252, HD 50692, HIP 33277, HR 2569, SAO 78866.[9]
Database references

37 Geminorum is a star located at the northwest part of the northern zodiac constellation of Gemini. Its distance from the Sun is about 56.2 light years. It is a solitary, G-type main sequence star with a stellar classification of G0 V. No extrasolar planets have yet been discovered around it. It is the target of a METI message dubbed the Teen Age Message. It has also been listed in the Catalog of Nearby Habitable Systems.

Teen Age Message[edit]

There was a METI message sent to 37 Geminorum. It was transmitted from Eurasia's largest radar, 70-meter Yevpatoria Planetary Radar. The message was named the Teen Age Message, it was sent on September 3, 2001, and it will arrive at 37 Geminorum in December 2057.[10]

Catalog of Nearby Habitable Systems[edit]

The Catalog of Nearby Habitable Systems (HabCat) is a list of approximately 17,000 relatively close stars similar to the sun and considered able to support a planet habitable by humans. 37 Geminorum is on the HabCat list.[11]

See also[edit]


  1. ^ a b c d e van Leeuwen, F. (2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2): 653–664, arXiv:0708.1752, Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357.
  2. ^ a b Mermilliod, J.-C. (1986), "Compilation of Eggen's UBV data, transformed to UBV (unpublished)", Catalogue of Eggen's UBV data, SIMBAD, Bibcode:1986EgUBV........0M.
  3. ^ a b Gray, R.O.; et al. (July 2006), "Contributions to the Nearby Stars (NStars) Project: spectroscopy of stars earlier than M0 within 40 pc-The Southern Sample", The Astronomical Journal, 132 (1): 161–170, arXiv:astro-ph/0603770, Bibcode:2006AJ....132..161G, doi:10.1086/504637.
  4. ^ a b Martínez-Arnáiz, R.; et al. (September 2010), "Chromospheric activity and rotation of FGK stars in the solar vicinity. An estimation of the radial velocity jitter" (PDF), Astronomy and Astrophysics, 520: A79, arXiv:1002.4391, Bibcode:2010A&A...520A..79M, doi:10.1051/0004-6361/200913725.
  5. ^ Wilson, R. E. (1953), "General Catalogue of Stellar Radial Velocities", Washington, Carnegie Institute of Washington D.C., Bibcode:1953GCRV..C......0W.
  6. ^ McDonald, I.; et al. (2012), "Fundamental Parameters and Infrared Excesses of Hipparcos Stars", Monthly Notices of the Royal Astronomical Society, 427 (1): 343–57, arXiv:1208.2037, Bibcode:2012MNRAS.427..343M, doi:10.1111/j.1365-2966.2012.21873.x.
  7. ^ a b Holmberg, J.; et al. (2009), "The Geneva-Copenhagen survey of the solar neighbourhood. III. Improved distances, ages, and kinematics", Astronomy and Astrophysics, 501 (3): 941–947, arXiv:0811.3982, Bibcode:2009A&A...501..941H, doi:10.1051/0004-6361/200811191. See Vizier catalogue V/130.
  8. ^ Vican, Laura (June 2012), "Age Determination for 346 Nearby Stars in the Herschel DEBRIS Survey", The Astronomical Journal, 143 (6): 135, arXiv:1203.1966, Bibcode:2012AJ....143..135V, doi:10.1088/0004-6256/143/6/135.
  9. ^ "* 37 Gem". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2016-09-12.
  10. ^ Zaitsev, Alexander (2006). "Messaging to Extra-Terrestrial Intelligence": arXiv:physics/0610031. arXiv:physics/0610031. Bibcode:2006physics..10031Z.
  11. ^ Turnbull, Margaret C; Tarter, Jill C (2003). "Target Selection for SETI. I. A Catalog of Nearby Habitable Stellar Systems". The Astrophysical Journal Supplement Series. 145: 181. arXiv:astro-ph/0210675. Bibcode:2003ApJS..145..181T. doi:10.1086/345779.

External links[edit]

  • "37 Geminorum". SolStation. Archived from the original on 10 December 2005. Retrieved 2005-12-12.
  • HabCat A Catalog of Nearby Habitable Systems