51 Ursae Majoris

Above the horizon. Rise: 18:39 | Tran: 5:59 | Set: 17:16

Alt: 5.88° Az: 29.90° Direction: North-North-East

51 Ursae Majoris is a multiple giant star of spectral class A3 in the constellation of Ursa Major.

51 Ursae Majoris visual magnitude is 6. Because of its faintness, 51 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.

DSS2 image of 51 Ursae Majoris. The red arrow shows the motion of 51 Ursae Majoris during the next 10000 years (-10.67 arcmin in Right Ascension and -0.50 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 11h 05m 54s

Declination +38° 06’ 23”

Hour Angle 14h 36m 16s

Sidereal Time 01h 42m 10s

J2000

Right Ascension 11h 04m 31s

Declination +38° 14’ 29”

Galactic Coordinates

Galactic Longitude 179.75°

Galactic Latitude 65.03°

Finder Chart

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Finder chart for 51 Ursae Majoris.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6

Class Giant

Absolute magnitude 1.47

Spectral Type A3III

Color Index (B-V) 0.16

Temperature 8486K

The red dot in the diagram below shows where 51 Ursae Majoris is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 51 Ursae Majoris. Attribution: Richard Powell / CC BY-SA

Star System Properties

51 Ursae Majoris is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the 51 Ursae Majoris double sysyem:

Main star magnitude 6

Secondary star magnitude 13.1

Magnitude difference 7.1

Separation 8.4 arcsec

Distance, Radial Speed, Proper Motion

51 Ursae Majoris is distant 262.69 light years from the Sun and it is moving far from the Sun at the speed of 7 kilometers per second.

Distance (parsec) 80.58

Distance (light year) 262.69

Radial Speed 7 km/s

Proper Motion RA -0.064 arcsec/y

Proper Motion Dec -0.003"/y

Alternative Designations

Flamsteed designation 51 Ursae Majoris

Henry Draper Catalogue HD95934

SAO Catalogue SAO62387

Hipparcos Catalogue HIP54136

Durchmusterung Catalogue BD+39 2414

FK5 Catalogue 2882

Aitken Double Star Catalogue ADS8046

Visibility from Your Location

Today's 51 Ursae Majoris rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 51.9° RISE 18:39

Max altitude: 76.6° TRANSIT 5:59

Azimuth: 308.1° SET 17:16

Set Location

Other stars in Ursa Major