74 Orionis

74 Orionis
Observation data
Epoch J2000      Equinox J2000
Constellation Orion
Right ascension 06h 16m 26.61934s[1]
Declination 12° 16′ 19.7806″[1]
Apparent magnitude (V) 5.04[2]
Characteristics
Spectral type F5V[3]
U−B color index -0.02[4]
B−V color index +0.42[4]
Astrometry
Radial velocity (Rv)+9.17[5] km/s
Proper motion (μ) RA: +82.52[1] mas/yr
Dec.: +185.47[1] mas/yr
Parallax (π)51.95 ± 0.27[1] mas
Distance62.8 ± 0.3 ly
(19.2 ± 0.1 pc)
Absolute magnitude (MV)3.62[2]
Details
Mass1.33[6] M☉
Radius1.3[6] R☉
Luminosity3.02[2] L☉
Surface gravity (log g)4.34[7] cgs
Temperature6,595[7] K
Metallicity [Fe/H]-0.03[2] dex
Rotational velocity (v sin i)18.8[8] km/s
Other designations
k Orionis, BD+12°1084, CCDM J06165+1216A, FK5 1169, GC 8033, GJ 9207, HIP 29800, HR 2241, HD 43386, LTT 11823, SAO 95476, WDS J06164+1216A
Database references
SIMBADdata

74 Orionis is a class F5V[3] (yellow-white dwarf) star in the constellation Orion. Its apparent magnitude is 5.04[2] and it is approximately 62.8 light years away based on parallax.[1]

It has two companions, B, with magnitude 12.5 and separation 32.1", and C, with magnitude 9.0 and separation 195.5".[9]

References

  1. 1 2 3 4 5 6 Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653. Bibcode:2007A&A...474..653V. arXiv:0708.1752 Freely accessible. doi:10.1051/0004-6361:20078357. Vizier catalog entry
  2. 1 2 3 4 5 Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. Bibcode:2012AstL...38..331A. arXiv:1108.4971 Freely accessible. doi:10.1134/S1063773712050015. Vizier catalog entry
  3. 1 2 Gray, R. O.; Corbally, C. J.; Garrison, R. F.; McFadden, M. T.; Robinson, P. E. (2003). "Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 Parsecs: The Northern Sample. I". The Astronomical Journal. 126 (4): 2048. Bibcode:2003AJ....126.2048G. arXiv:astro-ph/0308182 Freely accessible. doi:10.1086/378365.
  4. 1 2 Mallama, A. (2014). "Sloan Magnitudes for the Brightest Stars". The Journal of the American Association of Variable Star Observers. 42: 443. Bibcode:2014JAVSO..42..443M.Vizier catalog entry
  5. ↑ Maldonado, J.; Martínez-Arnáiz, R. M.; Eiroa, C.; Montes, D.; Montesinos, B. (2010). "A spectroscopy study of nearby late-type stars, possible members of stellar kinematic groups". Astronomy and Astrophysics. 521: A12. Bibcode:2010A&A...521A..12M. doi:10.1051/0004-6361/201014948.
  6. 1 2 Allende Prieto, C.; Lambert, D. L. (1999). "Fundamental parameters of nearby stars from the comparison with evolutionary calculations: Masses, radii and effective temperatures". Astronomy and Astrophysics. 352: 555. Bibcode:1999A&A...352..555A. arXiv:astro-ph/9911002 Freely accessible. Vizier catalog entry
  7. 1 2 David, Trevor J.; Hillenbrand, Lynne A. (2015). "The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets". The Astrophysical Journal. 804 (2): 146. Bibcode:2015ApJ...804..146D. arXiv:1501.03154 Freely accessible. doi:10.1088/0004-637X/804/2/146. Vizier catalog entry
  8. ↑ De Medeiros, J. R.; Mayor, M. (1999). "A catalog of rotational and radial velocities for evolved stars". Astronomy and Astrophysics Supplement Series. 139 (3): 433. Bibcode:1999A&AS..139..433D. doi:10.1051/aas:1999401. Vizier catalog entry
  9. ↑ 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. Vizier catalog entry
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