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Transit: 12:48 
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All Constellations » Ursa Major » 

23 Ursae Majoris

Above the horizon.  Circumpolar today
Alt: 65.52°   Az: 313.78°   Direction: North-West

23 Ursae Majoris is a variable and multiple hypergiant star of spectral class F0 in the constellation of Ursa Major.

23 Ursae Majoris visual magnitude is 3.67. Because of its moderate brightness, 23 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.

Image of 23 Ursae Majoris star
DSS2 image of 23 Ursae Majoris. The red arrow shows the motion of 23 Ursae Majoris during the next 1000 years (1.82 arcmin in Right Ascension and 0.47 arcmin in declination);

Celestial Coordinates

Apparent

09h 33m 26s
+62° 57’ 06”
02h 44m 32s
12h 17m 59s

J2000

09h 31m 31s
+63° 03’ 42”

Galactic Coordinates

150.64°
41.74°

Finder Chart

Finder chart 23 Ursae Majoris star
Simplified finder chart for 23 Ursae Majoris.

Magnitude, Color, Spectral Class

3.67
Hypergiant

1.85
F0IV
7276K

The red dot in the diagram below shows where 23 Ursae Majoris is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of 23 Ursae Majoris. Attribution: Richard Powell / CC BY-SA

Star System Properties

23 Ursae Majoris 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 23 Ursae Majoris double sysyem:

3.67
9.27
5.6
22.8 arcsec

Distance, Radial Speed, Proper Motion

23 Ursae Majoris is distant 75.46 light years from the Sun and it is moving towards the Sun at the speed of 10 kilometers per second.

23.15
75.46
-10 km/s
0.109 arcsec/y
0.028"/y

Alternative Designations

23 Ursae Majoris
SAO14908
SAO14908

Visibility from Your Location

23 Ursae Majoris is circumpolar and transits at 08:39 UTC (altitude: 78.5°)