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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:55  
clear_day Transit: 12:11  
SunsetSet: 17:29
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All Constellations » Ursa Major » 

28 Ursae Majoris

Altitude: 30.6°   Azimuth: 338.3°   Direction: North-North-West

28 Ursae Majoris is a double main-sequence star in the constellation of Ursa Major.

28 Ursae Majoris visual magnitude is 6.34. Because of its reltive faintness, 28 Ursae Majoris should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of 28 Ursae Majoris is -0.012 arcsec per year in Right Ascension and -0.043 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 28 Ursae Majoris star
DSS2 image of 28 Ursae Majoris. The red arrow shows the motion of 28 Ursae Majoris during the next 10000 years (-2.00 arcmin in Right Ascension and -7.17 arcmin in declination);

Key facts about 28 Ursae Majoris


28 Ursae Majoris is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 30.6°
Azimuth: 338.3°
Direction: North-North-West

Celestial coordinates and finder chart of 28 Ursae Majoris

28 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 28 Ursae Majoris are provided in the following table:

09h 45m 55s
+63° 39’ 11”
Ursa Major

The simplified sky map below shows the position of 28 Ursae Majoris in the sky:

Finder chart 28 Ursae Majoris star
Simplified finder chart for 28 Ursae Majoris.

Visibility of 28 Ursae Majoris from your location

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

28 Ursae Majoris is circumpolar and transits at 23:24 UTC (altitude: 77.8°)

Distance of 28 Ursae Majoris from the Sun and relative movement

28 Ursae Majoris is distant 251.93 light years from the Sun and it is moving towards the Sun at the speed of 27 kilometers per second.

77.28 pc
251.93 ly
-27 km/s
-0.012 arcsec/year
-0.043 arcsec/year

Spectral properties of 28 Ursae Majoris

28 Ursae Majoris belongs to spectral class F2 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where 28 Ursae Majoris is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 28 Ursae Majoris. Attribution: Richard Powell / CC BY-SA

28 Ursae Majoris star system properties

28 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 28 Ursae Majoris double sysyem:

6.4 arcsec

Alternative designations of 28 Ursae Majoris

28 Ursae Majoris