We use cookies to deliver essential features and to measure their performance. Learn more.
Support TheSkyLive Development Donate Now!
public LocationGreenwich, UK
Sunrise: 5:15 
Transit: 13:06 
Sunset: 20:56
sunny   (Daytime)   What's Visible Now?
All Constellations » Ursa Major » 

σ1 Ursae Majoris (sigma1 Ursae Majoris)

Above the horizon.  Circumpolar today
Alt: 62.26°   Az: 38.62°   Direction: North-East

σ1 Ursae Majoris is a giant star of spectral class K5 in the constellation of Ursa Major.

σ1 Ursae Majoris visual magnitude is 5.14. Because of its faintness, σ1 Ursae Majoris is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

Image of σ1 Ursae Majoris (sigma1 Ursae Majoris) star
DSS2 image of σ1 Ursae Majoris. The red arrow shows the motion of σ1 Ursae Majoris during the next 10000 years (-3.00 arcmin in Right Ascension and -6.33 arcmin in declination);

Celestial Coordinates


09h 10m 31s
+66° 46’ 21”
20h 50m 13s
06h 00m 44s


09h 08m 23s
+66° 52’ 23”

Galactic Coordinates


Finder Chart

Finder chart σ1 Ursae Majoris (sigma1 Ursae Majoris) star
Simplified finder chart for σ1 Ursae Majoris (sigma1 Ursae Majoris).

Magnitude, Color, Spectral Class



The red dot in the diagram below shows where σ1 Ursae Majoris is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of σ1 Ursae Majoris. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

σ1 Ursae Majoris is distant 498.47 light years from the Sun and it is moving far from the Sun at the speed of 15 kilometers per second.

15 km/s
-0.018 arcsec/y

Alternative Designations

σ1 Ursae Majoris
(sigma1 Ursae Majoris)
11 Ursae Majoris

Visibility from Your Location

σ1 Ursae Majoris (sigma1 Ursae Majoris) is circumpolar and transits at 12:55 UTC (altitude: 74.7°)