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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: 7:52  
clear_day Transit: 11:51  
SunsetSet: 15:49 south
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All Constellations » Andromeda » 

39 Andromedae

Altitude: 10.8°   Azimuth: 327.1°   Direction: North-North-West

39 Andromedae is a double star in the constellation of Andromeda.

39 Andromedae visual magnitude is 5.98. Because of its reltive faintness, 39 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 39 Andromedae:


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

Altitude: 10.8°
Azimuth: 327.1°
Direction: North-North-West

Celestial coordinates and finder chart of 39 Andromedae

39 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 39 Andromedae are provided in the following table:

01h 02m 54s
+41° 20’ 41”

The simplified sky map below shows the position of 39 Andromedae in the sky:

Finder chart 39 Andromedae star
Simplified finder chart for 39 Andromedae.

Visibility of 39 Andromedae from your location

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

39 Andromedae is circumpolar and transits at 19:45 UTC (altitude: 79.9°)

Digitized Sky Survey image of 39 Andromedae

The image below is a photograph of 39 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 39 Andromedae is -0.02 arcsec per year in Right Ascension and -0.01 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 39 Andromedae star
DSS2 image of 39 Andromedae. The red arrow shows the motion of 39 Andromedae during the next 10000 years (-3.33 arcmin in Right Ascension and -1.67 arcmin in declination);

Distance of 39 Andromedae from the Sun and relative movement

39 Andromedae is distant 343.52 light years from the Sun and it is moving far from the Sun at the speed of 4 kilometers per second.

105.37 pc
343.52 ly
4 km/s
-0.02 arcsec/year
-0.01 arcsec/year

Spectral properties of 39 Andromedae

39 Andromedae belongs to spectral class A5


The red dot in the diagram below shows where 39 Andromedae is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 39 Andromedae. Attribution: Richard Powell / CC BY-SA

39 Andromedae star system properties

39 Andromedae is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the 39 Andromedae double sysyem:

20.9 arcsec

Alternative designations of 39 Andromedae

39 Andromedae