Chi Tauri

From Wikipedia, the free encyclopedia
Jump to: navigation, search
This article is about the star. For the Marvel Comics alien species, see Chitauri.
χ Tauri
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Taurus
Right ascension 04h 22m 34.9s
Declination +25° 37' 45"
Apparent magnitude (V) +5.38
Distance 268 ± 22 ly
(82 ± 7 pc)
Spectral type B9V+F8V
Other designations
59 Tauri, HR 1369, HD 27638, BD+25 707, HIP 20430, SAO 76573, GC 5292, ADS 3161, CCDM 04226+2538

Chi Tauri (χ Tau, χ Tauri) is a binary star in the constellation Taurus. It is approximately 268 light years from Earth.

This is a spectroscopic binary, which means that the individual components have not been distinguished in a telescope.

The primary component, Chi Tauri A, is a blue-white B-type main sequence dwarf with an apparent magnitude of +5.38. Chi Tauri B is a magnitude +7.6 yellow F8 main sequence dwarf, located 19 arcseconds from the primary. The Washington Double Star Catalog lists three further companions, all below magnitude 12 and 10" - 20" distant.[1]


  1. ^ 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.