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Proper NameNone
Bayer DesignationNone
Flamsteed NumberNone
HR (BSC)None
Variable DesignationBF Orionis
Right Ascension5h 37m 13s
Declination-6° 35' 1"
Distancec.1,300 light years
c.400 parsecs
MagnitudeApparent: +10.1
Absolute: -2.1
Spectral ClassA5II-IIIeva white giant
Optimum VisibilityDecember / January
NotesBF Orionis is a young star in the early stages of formation, and is still contracting out of the material of the surrounding Orion Nebula. It has a dense protoplanetary disc, which contains a massive planet, or possibly a brown dwarf. The star's magnitude drops and then recovers periodically as this large body eclipses its light, as seen from Earth.