57 Ursae Majoris

Above the horizon. Circumpolar today

Alt: 45.69° Az: 80.46° Direction: East

57 Ursae Majoris is a multiple main-sequence star of spectral class A2 in the constellation of Ursa Major.

57 Ursae Majoris visual magnitude is 5.31. Because of its faintness, 57 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 57 Ursae Majoris. The red arrow shows the motion of 57 Ursae Majoris during the next 10000 years (-8.33 arcmin in Right Ascension and 2.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 11h 30m 26s

Declination +39° 11’ 46”

Hour Angle 19h 49m 03s

Sidereal Time 07h 19m 30s

J2000

Right Ascension 11h 29m 04s

Declination +39° 20’ 12”

Galactic Coordinates

Galactic Longitude 172.23°

Galactic Latitude 68.97°

Finder Chart

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Finder chart for 57 Ursae Majoris.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.31

Class Main-sequence

Absolute magnitude 1.27

Spectral Type A2V

Color Index (B-V) 0.01

Temperature 10002K

The red dot in the diagram below shows where 57 Ursae Majoris is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 57 Ursae Majoris. Attribution: Richard Powell / CC BY-SA

Star System Properties

57 Ursae Majoris is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the 57 Ursae Majoris double sysyem:

Main star magnitude 5.31

Secondary star magnitude 7.81

Magnitude difference 2.5

Separation 346.3 arcsec

Distance, Radial Speed, Proper Motion

57 Ursae Majoris is distant 209.11 light years from the Sun and it is moving towards the Sun at the speed of 11 kilometers per second.

Distance (parsec) 64.14

Distance (light year) 209.11

Radial Speed -11 km/s

Proper Motion RA -0.05 arcsec/y

Proper Motion Dec 0.016"/y

Alternative Designations

Flamsteed designation 57 Ursae Majoris

Henry Draper Catalogue HD99787

SAO Catalogue SAO62572

Hipparcos Catalogue HIP56034

Durchmusterung Catalogue BD+40 2433

Aitken Double Star Catalogue ADS8175

Visibility from Your Location

57 Ursae Majoris is circumpolar and transits at 16:30 UTC (altitude: 77.7°)

Set Location

Other stars in Ursa Major