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Proper NameNone
Bayer DesignationRho Orionis
Flamsteed Number17 Orionis
HR (BSC)1698
Right Ascension5h 13m 17s
Declination+2° 51' 41"
Distance350 light years
107 parsecs
MagnitudeApparent: +4.5
Absolute: -0.6
Spectral ClassK3 Orange Giant
Optimum VisibilityDecember
NotesThis orange giant is a carbon star, with unusually high concentrations of carbon compounds in its atmosphere. It forms the core of a binary system, with a much fainter companion star orbiting at a distance of some 730 AU.

Imagery provided by Aladin sky atlas


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