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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 6:44  
clear_day Transit: 12:51  
SunsetSet: 18:57 south
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All Constellations » Andromeda » 

Nembus - 51 Andromedae

Altitude: 11.3°   Azimuth: 347.7°   Direction: North-North-West

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

Nembus visual magnitude is 3.57. Because of its moderate brightness, Nembus should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about Nembus:


Nembus - 51 Andromedae is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 11.3°
Azimuth: 347.7°
Direction: North-North-West

Celestial coordinates and finder chart of Nembus

Nembus is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of Nembus are provided in the following table:

01h 37m 59s
+48° 37’ 41”

The simplified sky map below shows the position of Nembus in the sky:

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

Visibility of Nembus from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Nembus - 51 Andromedae is circumpolar and transits at 01:35 UTC (altitude: 87.1°)

Digitized Sky Survey image of Nembus

The image below is a photograph of Nembus from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of Nembus is 0.065 arcsec per year in Right Ascension and -0.113 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

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);

Distance of Nembus from the Sun and relative movement

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.

53.30 pc
173.77 ly
16 km/s
0.065 arcsec/year
-0.113 arcsec/year

Spectral properties of Nembus

Nembus belongs to spectral class K3 and has a luminosity class of III corresponding to a giant star.


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

Alternative designations of Nembus

51 Andromedae