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Omicron Capricorni

12 Capricorni

White binary system in Capricornus

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Proper Name	None
Bayer Designation	Omicron Capricorni
Flamsteed Number	12 Capricorni
HR (BSC)	7830 (A), 7829 (B)
HD	195094 (A), 195093 (B)
Constellation	Capricornus
Right Ascension	20h 29m 54s (A), 20h 29m 53s (B)
Declination	-18° 34' 59" (A), -18° 35' 11" (B)
Distance	233 light years 71 parsecs
Magnitude	Apparent: +5.90 (A), +6.67 (B) Absolute: +1.63 (A), +2.41 (B)
Spectral Class	A3Vn white main sequence star (A) A7V white main sequence star (B)
Optimum Visibility	August

The binary nature of Omicron Capricorni is clearly visible in this image. Omicron Capricorni A is the northeastern of the two component stars, while the slightly fainter Omicron Capricorni B is the southwestern member of the pair. Imagery provided by Aladin sky atlas

Omicron Capricorni, a faint binary in Capricornus that lies very close to the line of the Ecliptic.

A system compased of binary companion stars on an almost direct line of sight from Earth (the brighter being designated Omicron Capricorni A, the other Omicron Capricorni B). Even the 'A' star appears faint to an observer on Earth, with an apparent magnitude of +5.90 making it invisible to the naked eye except under ideal conditions. The two component stars of the system are widely separated in space, and probably orbit one another at a distance of more than two thousand Astronomical Units.

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