Chi² Orionis

χ2 Orionis
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Orion
Right ascension 06h 03m 55.1849s[1]
Declination +20° 08′ 18.427″[1]
Apparent magnitude (V) 4.646[1]
Characteristics
Spectral type B2Iaev[1]
U−B color index −0.68[2]
B−V color index +0.28[2]
R−I color index +0.22[2]
Variable type ACYG[3]
Astrometry
Radial velocity (Rv) 16.8 ± 0.9[1] km/s
Proper motion (μ) RA: 2.19[1] mas/yr
Dec.: −2.81[1] mas/yr
Parallax (π) 0.10 ± 0.89[1] mas
Distance approx. 33000 ly
(approx. 10000 pc)
Details
Radius 59[4] R☉
Rotational velocity (v sin i) 36[2] km/s
Other designations
χ2 Ori, Chi2 Orionis, Chi2 Ori, 62 Orionis, 62 Ori, BD+20 1233, GC 7675, HD 41117, HIP 28716, HR 2135, PPM 95316, SAO 77911.[1]
Database references
SIMBAD data

Chi2 Orionis (Chi2 Ori / χ2 Orionis / χ2 Ori) is a B-type supergiant star in the constellation of Orion.[1] It has an apparent visual magnitude of approximately 4.646.[1]

References

  1. ^ a b c d e f g h i j k * 62 Ori -- Emission-line Star, database entry, SIMBAD. Accessed on line January 14, 2011.
  2. ^ a b c d HR 2135, database entry, The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version), D. Hoffleit and W. H. Warren, Jr., CDS ID V/50. Accessed on line January 14, 2011.
  3. ^ khi 2 Ori, database entry, The combined table of GCVS Vols I-III and NL 67-78 with improved coordinates, General Catalogue of Variable Stars, Sternberg Astronomical Institute, Moscow, Russia. Accessed on line January 14, 2011.
  4. ^ HD 41117, database entry, Catalog of Apparent Diameters and Absolute Radii of Stars (CADARS), 3rd edition, L. E. Pasinetti-Fracassini, L. Pastori, S. Covino, and A. Pozzi, CDS ID II/224. Accessed on line January 14, 2011.
Stars of Orion
Bayer
Flamsteed
Nearby
Other