Nembus - 51 Andromedae

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:

Color of Nembus ⬤

Magnitude of Nembus 3.57

Class Giant

VISIBILITY RIGHT NOW Nembus - 51 Andromedae is above the horizon from Greenwich, United Kingdom [change]. Altitude: 28°.

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:

Right Ascension J2000 01h 37m 59s

Declination J2000 +48° 37’ 41”

Galactic Longitude 130.81°

Galactic Latitude -13.53°

Constellation Andromeda

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 [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Nembus - 51 Andromedae is circumpolar and transits at 13:19 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.

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.

Distance (parsec) 53.30 pc

Distance (light year) 173.77 ly

Heliocentric radial velocity 16 km/s

Proper Motion RA 0.065 arcsec/year

Proper Motion Dec -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.

Absolute magnitude -0.06

Spectral Type K3III

Color Index (B-V) 1.28

Temperature of Nembus 4158K

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

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

Alternative designations of Nembus

Proper Name Nembus

Flamsteed designation 51 Andromedae

Henry Draper Catalogue HD9927

SAO Catalogue SAO37375

Hipparcos Catalogue HIP7607

Durchmusterung Catalogue BD+47 467

FK5 Catalogue 52

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