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User:Mira Oubliette/Theta1 Orionis B

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Theta1 Orionis B
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Orion
Right ascension 05h 35m 16.112s
Declination −05° 23′ 06.89″
Apparent magnitude (V) 7.90 - 8.65
Distance1350 - 1500 ly
(413.903 - 459.892 pc)
Spectral typeB1V
Other designations
BM Ori
Database references
SIMBADori b data

Theta1 Orionis B (θ1 Ori B, also known as BM Orionis)[1] is a star in the Trapezium Cluster in the constellation Orion. It is an eclipsing variable star, either a binary of the Agol type, or a quaternary system. Its apparent magnitude has a range from 7.90 to 8.65 with a period of 6.471 days.

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References

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  1. ^ "The Trapezium". The Worlds of David Darling. Retrieved 5 August 2014.


Category:Orion (constellation) Category:B-type main-sequence stars Orionis, Theta1 B