Omicron Capricorni

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ο Capricorni A/B
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Capricornus
Right ascension 20h29m52.5s
Declination −18°35′12″
Apparent magnitude (V) +6.1/+6.74
Distance 137 ± 45 ly
(42 ± 14 pc)
Spectral type A3Vn/A7V
Other designations
12 Capricorni, HR 7830/7829, HD 195094/195093, BD−19°5829/BD−19°5830, HIP 101123/101120, SAO 163626/163625, GC 28503/28502, ADS 13902, CCDM J20299-1835

Omicron Capricorni (ο Cap, ο Capricorni) is a binary star in the constellation Capricornus.[1] It is approximately 137 light years from Earth.

Both components are white A-type main sequence dwarfs The primary, ο Capricorni A, sometimes called ο¹ Capricorni, has an apparent magnitude of +5.94, while the companion, ο Capricorni B or ο² Capricorni, has an apparent magnitude of +6.74. The two stars are currently separated by 21.9 arcseconds.


  1. ^ Harvard College Observatory (1941). Sky and Telescope. Stanford University.