Blue-white subgiant · Scorpius

Jabbah

Also known as: ν Scorpii (ν Sco), HIP 79374

mag 4.0470 light-years

About

Jabbah (ν Scorpii) is a blue-white subgiant of magnitude 4.0 in Scorpius, about 470 light-years away.

Jabbah is in the constellation Scorpius.
Best evenings: around early 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 61° 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	Jabbah
Designation	ν Scorpii (ν Sco)
Hipparcos number	HIP 79374
Type	Blue-white subgiant
Spectral type	B2IV
Colour	WhiteB−V colour index 0.08
Magnitude	4.0The smaller the number, the brighter.
Distance	470 light-yearsThe light you see left it around 1550.
Proper motion	0.027″ per year across the sky
Constellation	Scorpius
Right ascension (J2000)	16h 11m 59.7s
Declination (J2000)	−19° 27′ 39″