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Theta Ophiuchi

42 Ophiuchi

Blue subgiant in Ophiuchus

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Proper Name	None
Bayer Designation	Theta Ophiuchi
Flamsteed Number	42 Ophiuchi
HR (BSC)	6453
HD	157056
Constellation	Ophiuchus
Right Ascension	17h 22m 1s
Declination	-24° 59' 58"
Distance	436 light years 134 parsecs
Magnitude	Apparent: +3.25 Absolute: -2.38
Spectral Class	B2IV blue subgiant
Optimum Visibility	June / July

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