23 Orionis

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23 Orionis
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Orion
Right ascension  05h 22m 50.00100s[1]
Declination +03° 32′ 40.0247″[1]
Apparent magnitude (V) 5.00[2]
Spectral typeB1V + B3V[3]
Other designations
23 Ori, HR 1770, HIP 25142, HD 35149
Database references

23 Orionis (23 Ori) is a star in the constellation Orion. Its apparent magnitude is 5.00.


  1. ^ a b 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. ^ Telting, J. H.; Schrijvers, C.; Ilyin, I. V.; Uytterhoeven, K.; De Ridder, J.; Aerts, C.; Henrichs, H. F. (2006). "A high-resolution spectroscopy survey of β Cephei pulsations in bright stars". Astronomy and Astrophysics. 452 (3): 945. Bibcode:2006A&A...452..945T. doi:10.1051/0004-6361:20054730.
  3. ^ Levato, H. (1975). "Rotational velocities and spectral types for a sample of binary systems". Astronomy and Astrophysics. 19: 91. Bibcode:1975A&AS...19...91L.