Gamma1 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
HR 844, HD 17713, HIP 13197
Database references
SIMBADdata

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.

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. 1 2 3 4 5 Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653. arXiv:0708.1752Freely accessible. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.
  2. 1 2 3 4 5 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. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065.
  5. 1 2 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:1208.2037Freely accessible. 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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