39 Ursae Majoris

Above the horizon. Circumpolar today

Alt: 18.55° Az: 359.82° Direction: North

39 Ursae Majoris is a hypergiant star of spectral class A0 in the constellation of Ursa Major.

39 Ursae Majoris visual magnitude is 5.8. Because of its faintness, 39 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 39 Ursae Majoris. The red arrow shows the motion of 39 Ursae Majoris during the next 10000 years (2.83 arcmin in Right Ascension and -8.83 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 10h 45m 18s

Declination +57° 03’ 55”

Hour Angle 11h 58m 43s

Sidereal Time 22h 44m 01s

J2000

Right Ascension 10h 43m 43s

Declination +57° 11’ 57”

Galactic Coordinates

Galactic Longitude 150.95°

Galactic Latitude 52.42°

Finder Chart

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Finder chart for 39 Ursae Majoris.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.8

Class Hypergiant

Absolute magnitude 0.54

Spectral Type A0V

Color Index (B-V) -0.02

Temperature 10382K

The red dot in the diagram below shows where 39 Ursae Majoris is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 39 Ursae Majoris. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

39 Ursae Majoris is distant 367.53 light years from the Sun and it is moving towards the Sun at the speed of 15 kilometers per second.

Distance (parsec) 112.74

Distance (light year) 367.53

Radial Speed -15 km/s

Proper Motion RA 0.017 arcsec/y

Proper Motion Dec -0.053"/y

Alternative Designations

Flamsteed designation 39 Ursae Majoris

Henry Draper Catalogue HD92728

SAO Catalogue SAO27748

Hipparcos Catalogue HIP52478

Durchmusterung Catalogue BD+57 1286

Visibility from Your Location

39 Ursae Majoris is circumpolar and transits at 18:19 UTC (altitude: 84.4°)

Set Location

Other stars in Ursa Major