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public LocationGreenwich, United Kingdom
Sunrise: 4:42 
Transit: 12:59 
Sunset: 21:16
sunny   (Daytime)   What's Visible Now?

σ2 Ursae Majoris (sigma2 Ursae Majoris)

Above the horizon.  Circumpolar today
Altitude: 59.2°   Azimuth: 38.6°   Direction: North-East

σ2 Ursae Majoris is a variable and multiple sub-giant star of spectral class F6 in the constellation of Ursa Major.

σ2 Ursae Majoris visual magnitude is 4.8. Because of its moderate brightness, σ2 Ursae Majoris 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.

Celestial coordinates and finder chart of σ2 Ursae Majoris

Finder chart σ2 Ursae Majoris (sigma2 Ursae Majoris) star
Simplified finder chart for σ2 Ursae Majoris (sigma2 Ursae Majoris).

σ2 Ursae Majoris is situated close to the northern celestial pole and, as such, it is visible for most part of the year from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of σ2 Ursae Majoris are provided in the following table:

09h 10m 23s
+67° 08’ 04”
Ursa Major
Image of σ2 Ursae Majoris (sigma2 Ursae Majoris) star
DSS2 image of σ2 Ursae Majoris. The red arrow shows the motion of σ2 Ursae Majoris during the next 10000 years (-3.33 arcmin in Right Ascension and -12.33 arcmin in declination);

Key facts about σ2 Ursae Majoris


and has a luminosity class of IV corresponding to a sub-giant star.


The red dot in the diagram below shows where σ2 Ursae Majoris is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of σ2 Ursae Majoris. Attribution: Richard Powell / CC BY-SA

σ2 Ursae Majoris star system properties

σ2 Ursae Majoris is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the σ2 Ursae Majoris double sysyem:

2.8 arcsec

Distance of σ2 Ursae Majoris from the Sun and relative movement

σ2 Ursae Majoris is distant 66.71 light years from the Sun and it is moving towards the Sun at the speed of 2 kilometers per second.

20.46 pc
66.71 ly
-2 km/s
-0.02 arcsec/year
-0.074 arcsec/year

Alternative designations of σ2 Ursae Majoris

σ2 Ursae Majoris
(sigma2 Ursae Majoris)
13 Ursae Majoris
Gl 335 A

Visibility of σ2 Ursae Majoris from your location

σ2 Ursae Majoris (sigma2 Ursae Majoris) is circumpolar and transits at 15:28 UTC (altitude: 74.3°)