Sections

Catalogues

Tools and Links

Galactic Map

Show the direction and distance to this object on the Galactic Map.

Theta² Orionis

43 Orionis, V361 Orionis (C component)
Brun 681 (A), 714 (B), 760 (C)

Blue-white main sequence star in Orion

Show on Sky Map

Proper Name	None
Bayer Designation	Theta² Orionis
Flamsteed Number	43 Orionis
HR (BSC)	1897
HD	37041 (A, B), 37062 (C)
Variable Designation	V361 Orionis (C)
Other Designations	Brun 681 (A), 714 (B), 760 (C)
Constellation	Orion
Right Ascension	5h 35m 23s (A) 5h 35m 26s (B) 5h 35m 31s (C)
Declination	-5° 24' 58" (A) -5° 25' 1" (B) -5° 25' 16" (C)
Distance	c.1,100 light years c.300 parsecs
Magnitude	Apparent: +6.39 (A), +6.38 (B), +8.24 (C) Absolute: -1.24 (A), -1.73 (B), +0.19 (C)
Spectral Class	O9.5Vp Blue-white main sequence star (A) B0.7V blue main sequence star (B) B4V blue main sequence star (C)
Optimum Visibility	December / January

The complex Theta² Orionis system is embedded in the bright heart of the Orion Nebula. The reticle on this image marks the position of the primary star, while the B and C components are visible as distinct points to the east (left). Theta² Orionis B is the bright point immediately eastward of the primary, and the binary Theta² Orionis C (or V361 Orionis) lies farther eastward still, more widely separated from the other two components. Imagery provided by Aladin sky atlas

Indexes

Related Entries

v2.1g