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Guniibuu

36 Ophiuchi, V2215 Ophiuchi,
Gliese 663 (A+B), Gliese 664 (C),
LHS 437 (A), LHS 438 (B), LHS 439 (C)

Orange dwarf in Ophiuchus

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Proper Name	Guniibuu (A component)
Bayer Designation	None
Flamsteed Number	36 Ophiuchi
HR (BSC)	6402 (A), 6401 (B)
HD	155886 (A), 155885 (B), 156026 (C)
Variable Designation	V2216 Ophiuchi (C component)
Other Designations	Gliese 663 (A+B), Gliese 664 (C), LHS 437 (A), LHS 438 (B), LHS 439 (C)
Constellation	Ophiuchus
Right Ascension	17h 15m 21s (A), 17h 15m 21s (B), 17h 16m 13s (C)
Declination	-26° 36' 6" (A), -26° 36' 10" (B), -26° 32' 46" (C)
Distance	19.4 light years 6.0 parsecs
Magnitude	Apparent: +5.07 (A), +4.32 (B), +6.32 (C) Absolute: +6.20 (A), +5.45 (B), +7.45 (C)
Spectral Class	K2V orange dwarf (A) K1V orange dwarf (B) K5V orange dwarf (C)
Optimum Visibility	June / July

Centred in this image is the binary at the heart of the 36 Ophiuchi system, of which the star named Guniibuu is the 'A' component. The system also contains a third star, a variable of the RS Canum Venaticorum type, which is visible in the northeast (upper left) corner of the image. Imagery provided by Aladin sky atlas

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