Orange giant · Andromeda

Nembus

Also known as: 51 Andromedae (51 And), HIP 7607

mag 3.6180 light-years

About

Nembus (51 Andromedae) is an orange giant of magnitude 3.6 in Andromeda, about 180 light-years away.

Nembus is in the constellation Andromeda.
Best evenings: around late November 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 north of 31° S.

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	Nembus
Designation	51 Andromedae (51 And)
Hipparcos number	HIP 7607
Type	Orange giant
Spectral type	K3III
Colour	OrangeB−V colour index 1.27
Magnitude	3.6The smaller the number, the brighter.
Distance	180 light-yearsThe light you see left it around 1850.
Proper motion	0.13″ per year across the sky
Constellation	Andromeda
Right ascension (J2000)	01h 37m 59.5s
Declination (J2000)	+48° 37′ 42″