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37 Geminorum
Observation data
Epoch J2000      Equinox J2000
Constellation Gemini
Right ascension 06h 55m 18.7s
Declination +25° 22′ 33″
Apparent magnitude (V) 5.74
Characteristics
Spectral type G0 V
U-B color index 0.02
B-V color index +0.57
Variable type None
Astrometry
Radial velocity (Rv) -15.1 km/s
Proper motion (μ) RA: -35.75 mas/yr
Dec.: 25.14 mas/yr
Parallax (π) 57.86 ± 0.90 mas
Distance 56.3 ly
(17.28 pc)
Absolute magnitude (MV) +4.54
Details
Mass 1.1 M
Radius 1.03 R
Luminosity 1.25 L
Temperature 6024 K
Metallicity ?
Rotation <3 km/s.
Age 5.5 × 109 years
Other designations
Gl 252, HR 2569, BD +25°1496, HD 50692, GCTP 1613.02, SAO 78866, HIP 33277.

37 Geminorum is a star located at the northwest part of the constellation Gemini. Its distance from our Sun is about 56.3 light years. It is a solitary, yellow-white main sequence dwarf. No extrasolar planets have yet been discovered around this star.

37 Geminorum has many physical properties in common with the Sun and is one of the nearest solar twins. Due to this fact some scientists believe that the prospects for life in its vicinity are good. In September, 2003, 37 Geminorum was identified by astrobiologist Margaret Turnbull from the University of Arizona in Tucson as one of the most promising nearby candidates for hosting life based on her analysis of the HabCat list of stars.

There was a METI message sent to 37 Geminorum. It was transmitted from Eurasia's largest radar — 70-meter Eupatoria 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.[1]

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