Gamma1 Fornacis

Gamma1 Fornacis (γ1 For) is a star in the constellation Fornax. Its apparent magnitude is 6.15. It is a yellow giant that has swollen and brightened to around 80 times as luminous as the Sun.

For other stars with this Bayer designation, see γ Fornacis.
γ1 Fornacis
Location of γ1 Fornacis (circled)
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Fornax
Right ascension  02h 49m 50.96148s[1]
Declination −24° 33′ 37.1306″[1]
Apparent magnitude (V) 6.154[2]
Characteristics
Spectral type G9 III[3]
Astrometry
Radial velocity (Rv)−6.10 ± 0.7[4] km/s
Proper motion (μ) RA: −50.75 ± 0.55[1] mas/yr
Dec.: −129.61 ± 0.46[1] mas/yr
Parallax (π)7.48 ± 0.52[1] mas
Distance440 ± 30 ly
(134 ± 9 pc)
Absolute magnitude (MV)+0.52[2]
Details
Mass1.11[2] M☉
Luminosity79.72[5] L☉
Surface gravity (log g)2.60[2] cgs
Temperature4700[5] K
Metallicity [Fe/H]−0.02[2] dex
Other designations
CD−25° 1120, HD 17713, HIP 13197, HR 844, SAO 168081
Database references
SIMBADdata

γ1 Fornacis has three companions listed in the Washington Double Star Catalog. These are faint 11th - 13th magnitude stars at 11' - 56' distance from γ1.[6] Gamma2 Fornacis is a 5th magnitude star four degrees to the south.

References
  1. Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.
  2. Luck, R. Earle; Heiter, Ulrike (2007). "Giants in the Local Region". The Astronomical Journal. 133 (6): 2464. Bibcode:2007AJ....133.2464L. doi:10.1086/513194.
  3. Abt, Helmut A. (2008). "Visual Multiples. IX. MK Spectral Types". The Astrophysical Journal Supplement Series. 176: 216–217. Bibcode:2008ApJS..176..216A. doi:10.1086/525529.
  4. Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065.
  5. McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (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.
  6. Mason, Brian D.; Wycoff, Gary L.; Hartkopf, William I.; Douglass, Geoffrey G.; Worley, Charles E. (2001). "The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog". The Astronomical Journal. 122 (6): 3466. Bibcode:2001AJ....122.3466M. doi:10.1086/323920.
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