White main-sequence star · Aquarius

Sadachbia

Also known as: γ Aquarii (γ Aqr), HIP 110395

mag 3.9160 light-years

About

Sadachbia (γ Aquarii) is a white main-sequence star of magnitude 3.9 in Aquarius, about 160 light-years away.

Sadachbia is in the constellation Aquarius.
Best evenings: around mid-October 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 79° 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	Sadachbia
Designation	γ Aquarii (γ Aqr)
Hipparcos number	HIP 110395
Type	White main-sequence star
Spectral type	A0V
Colour	WhiteB−V colour index −0.06
Magnitude	3.9The smaller the number, the brighter.
Distance	160 light-yearsThe light you see left it around 1860.
Proper motion	0.13″ per year across the sky
Constellation	Aquarius
Right ascension (J2000)	22h 21m 39.4s
Declination (J2000)	−01° 23′ 14″