Iota Geminorum

ι Geminorum
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Gemini
Right ascension 07h 25m 43.59532s[1]
Declination +27° 47′ 53.0929″[1]
Apparent magnitude (V) 3.791[2]
Characteristics
Spectral type G9 III[3]
U−B color index +0.88[2]
B−V color index +1.01[2]
Astrometry
Radial velocity (Rv)7.26±0.16[4] km/s
Proper motion (μ) RA: −122.66[1] mas/yr
Dec.: −84.03[1] mas/yr
Parallax (π)27.10 ± 0.20 mas[1]
Distance120.4 ± 0.9 ly
(36.9 ± 0.3 pc)
Absolute magnitude (MV)+0.859[5]
Details[4]
Mass1.89[6] M☉
Radius10 R☉
Luminosity48 L☉
Surface gravity (log g)2.8 cgs
Temperature4,753 K
Metallicity [Fe/H]−0.17 dex
Rotational velocity (v sin i)0.0 km/s
Age4.16±2.54[5] Gyr
Other designations
ι Gem, 60 Geminorum, BD+28° 1385, FK5 282, HD 58207, HIP 36046, HR 2821, SAO 79374.[7]
Database references
SIMBADdata

Iota Geminorum (ι Geminorum, ι Gem) is a solitary[8] fourth-magnitude star in the constellation Gemini. In the sky, it forms an isosceles triangle with Castor and Pollux, and is located less than a degree from the 5th magnitude stars 64 and 65 Geminorum.[9]

  1. ^ a b c d e Cite error: The named reference vanLeeuwen2007 was invoked but never defined (see the help page).
  2. ^ a b c Cite error: The named reference Jennens1975 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Morgan1973 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Massarotti2008 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Soubiran2008 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Luck2015 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference OMeara2007 was invoked but never defined (see the help page).