Orange giant · Ophiuchus

Guniibuu

Also known as: 36 Ophiuchi (36 Oph), HIP 84405

mag 4.319 light-years

About

Guniibuu (36 Ophiuchi) is an orange giant of magnitude 4.3 in Ophiuchus, about 19 light-years away.

Guniibuu is in the constellation Ophiuchus.
Best evenings: around late July it is highest at about 9 pm (10 pm in summer time); a month earlier, two hours later.
Where on Earth: it is seen well, at least 10° up, from south of 53° N.

When it rises and sets tonight, how high it climbs and how much the Moon gets in the way are worked out in your browser for your place.

EyesVisible from the suburbs on a clear night, but lost in bright city skies.
Binoculars (10×50)A sharp point; binoculars bring out its colour and the fainter stars around it.
Telescope (6–8 inch)Still a point of light at any magnification — stars are too far away to show a disc. Low in the sky, bright stars twinkle and flash colours.

Stars look the same in any instrument: brighter and sharper, but never bigger.

Proper name	Guniibuu
Designation	36 Ophiuchi (36 Oph)
Hipparcos number	HIP 84405
Type	Orange giant
Spectral type	K2:III:
Colour	Pale orangeB−V colour index 0.85
Magnitude	4.3The smaller the number, the brighter.
Distance	19 light-yearsThe light you see left it around 2007.
Proper motion	1.24″ per year across the sky
Constellation	Ophiuchus
Right ascension (J2000)	17h 15m 21.0s
Declination (J2000)	−26° 36′ 10″