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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:48  
clear_day Transit: 11:49  
SunsetSet: 15:50 south
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All Constellations » Andromeda » 

12 Andromedae

Altitude: 27.0°   Azimuth: 61.7°   Direction: East-North-East

12 Andromedae is a multiple main-sequence star in the constellation of Andromeda.

12 Andromedae visual magnitude is 5.77. Because of its reltive faintness, 12 Andromedae should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about 12 Andromedae:


12 Andromedae is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 27.0°
Azimuth: 61.7°
Direction: East-North-East

Celestial coordinates and finder chart of 12 Andromedae

12 Andromedae 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 12 Andromedae are provided in the following table:

23h 20m 53s
+38° 10’ 55”

The simplified sky map below shows the position of 12 Andromedae in the sky:

Finder chart 12 Andromedae star
Simplified finder chart for 12 Andromedae.

Visibility of 12 Andromedae from your location

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

Today's 12 Andromedae rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 51.8°
Max altitude: 76.7°
Azimuth: 308.2°

Digitized Sky Survey image of 12 Andromedae

The image below is a photograph of 12 Andromedae 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 12 Andromedae is 0.13 arcsec per year in Right Ascension and -0.063 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of 12 Andromedae star
DSS2 image of 12 Andromedae. The red arrow shows the motion of 12 Andromedae during the next 1000 years (2.17 arcmin in Right Ascension and -1.05 arcmin in declination);

Distance of 12 Andromedae from the Sun and relative movement

12 Andromedae is distant 138.19 light years from the Sun and it is moving towards the Sun at the speed of 9 kilometers per second.

42.39 pc
138.19 ly
-9 km/s
0.13 arcsec/year
-0.063 arcsec/year

Spectral properties of 12 Andromedae

12 Andromedae belongs to spectral class F5 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where 12 Andromedae is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 12 Andromedae. Attribution: Richard Powell / CC BY-SA

12 Andromedae star system properties

12 Andromedae is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the 12 Andromedae double sysyem:

121.1 arcsec

Alternative designations of 12 Andromedae

12 Andromedae