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public LocationGreenwich, UK
Sunrise: 5:14 
Transit: 13:06 
Sunset: 20:58
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All Constellations » Andromeda » 

Nembus - 51 Andromedae

Above the horizon.  Circumpolar today
Alt: 26.51°   Az: 316.26°   Direction: North-West

Nembus, also designated as 51 Andromedae , is a giant star of spectral class K3 in the constellation of Andromeda.

Nembus visual magnitude is 3.57. Because of its moderate brightness, Nembus is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

Image of Nembus - 51 Andromedae star
DSS2 image of Nembus. The red arrow shows the motion of Nembus during the next 1000 years (1.08 arcmin in Right Ascension and -1.88 arcmin in declination);

Celestial Coordinates


01h 39m 30s
+48° 45’ 09”
07h 20m 50s
09h 00m 20s


01h 37m 59s
+48° 37’ 41”

Galactic Coordinates


Finder Chart

Finder chart Nembus - 51 Andromedae star
Simplified finder chart for Nembus - 51 Andromedae.

Magnitude, Color, Spectral Class



The red dot in the diagram below shows where Nembus is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of Nembus. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

Nembus is distant 173.77 light years from the Sun and it is moving far from the Sun at the speed of 16 kilometers per second.

16 km/s
0.065 arcsec/y

Alternative Designations

51 Andromedae

Visibility from Your Location

Nembus - 51 Andromedae is circumpolar and transits at 05:29 UTC (altitude: 87.3°)