Your guide to the Solar System and the night sky
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🌎  Observing from: Greenwich, United Kingdom [change]
🌅 Sunrise: 6:43  ☀️ Transit: 13:03  🌅 Sunset: 19:24

55 Andromedae

55 Andromedae is a double giant star in the constellation of Andromeda.

55 Andromedae visual magnitude is 5.4. Because of its reltive faintness, 55 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 55 Andromedae:

55 Andromedae is above the horizon from Greenwich, United Kingdom [change]. Altitude: 36°.

Celestial coordinates and finder chart of 55 Andromedae

55 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 55 Andromedae are provided in the following table:

01h 53m 17s
+40° 43’ 46”

The simplified sky map below shows the position of 55 Andromedae in the sky:

Finder chart 55 Andromedae star
Simplified finder chart for 55 Andromedae.

Visibility of 55 Andromedae from your location

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

55 Andromedae is circumpolar and transits at 13:26 UTC (altitude: 79.2°)

Digitized Sky Survey image of 55 Andromedae

The image below is a photograph of 55 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 55 Andromedae is -0.01 arcsec per year in Right Ascension and -0.006 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 55 Andromedae star
DSS2 image of 55 Andromedae. The red arrow shows the motion of 55 Andromedae during the next 10000 years (-1.67 arcmin in Right Ascension and -1.00 arcmin in declination);

Distance of 55 Andromedae from the Sun and relative movement

55 Andromedae is distant 539.74 light years from the Sun and it is moving towards the Sun at the speed of 7 kilometers per second.

165.56 pc
539.74 ly
-7 km/s
-0.01 arcsec/year
-0.006 arcsec/year

Spectral properties of 55 Andromedae

55 Andromedae belongs to spectral class K1


The red dot in the diagram below shows where 55 Andromedae is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 55 Andromedae. Attribution: Richard Powell / CC BY-SA

55 Andromedae star system properties

55 Andromedae is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the 55 Andromedae double sysyem:

59.8 arcsec

Alternative designations of 55 Andromedae

55 Andromedae