σ Andromedae (sigma Andromedae)

Above the horizon. Rise: 22:31 | Tran: 9:14 | Set: 19:54

Alt: 47.95° Az: 272.72° Direction: West

σ Andromedae is a variable main-sequence star of spectral class A2 in the constellation of Andromeda.

σ Andromedae visual magnitude is 4.52. Because of its moderate brightness, σ Andromedae is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

Image of σ Andromedae (sigma Andromedae) star

DSS2 image of σ Andromedae. The red arrow shows the motion of σ Andromedae during the next 10000 years (-10.50 arcmin in Right Ascension and -6.83 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 00h 19m 39s

Declination +36° 55’ 34”

Hour Angle 03h 47m 13s

Sidereal Time 04h 06m 53s

J2000

Right Ascension 00h 18m 19s

Declination +36° 47’ 07”

Galactic Coordinates

Galactic Longitude 115.59°

Galactic Latitude -25.61°

Finder Chart

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Finder chart for σ Andromedae (sigma Andromedae).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.52

Class Main-sequence

Absolute magnitude 1.34

Spectral Type A2V

Color Index (B-V) 0.05

Temperature 9542K

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

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

Distance, Radial Speed, Proper Motion

σ Andromedae is distant 141.06 light years from the Sun and it is moving towards the Sun at the speed of 8 kilometers per second.

Distance (parsec) 43.27

Distance (light year) 141.06

Radial Speed -8 km/s

Proper Motion RA -0.063 arcsec/y

Proper Motion Dec -0.041"/y

Alternative Designations

Bayer designation σ Andromedae
(sigma Andromedae)

Flamsteed designation 25 Andromedae

Henry Draper Catalogue HD1404

SAO Catalogue SAO53798

Hipparcos Catalogue HIP1473

Durchmusterung Catalogue BD+35 44

FK5 Catalogue 1005

General Catalogue of Variable Stars 118

Visibility from Your Location

Today's σ Andromedae (sigma Andromedae) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 53.1° RISE 22:31

Max altitude: 75.4° TRANSIT 9:14

Azimuth: 306.9° SET 19:54

Set Location

Other stars in Andromeda