· · · ·
Proper NameNone
Bayer DesignationEta Orionis
Flamsteed Number28 Orionis
HR (BSC)1788
Right Ascension5h 24m 29s (A), 5h 24m 29s (B)
Declination-2° 23' 49" (A), -2° 23' 50" (B)
Distance977 light years
299 parsecs
MagnitudeApparent: +3.4
Absolute: -4.0
Spectral ClassB1V Blue Main Sequence Star
Optimum VisibilityDecember / January

A star system nearly a thousand light years from Earth, a little to the west of the Belt of Orion. It is an eclipsing binary system consisting of two blue stars orbiting one another in a regular pattern.


Related Entries