84 Ursae Majoris

Above the horizon. Circumpolar today

Alt: 35.97° Az: 314.39° Direction: North-West

84 Ursae Majoris is a variable star of spectral class B9 in the constellation of Ursa Major.

84 Ursae Majoris visual magnitude is 5.7. Because of its faintness, 84 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 84 Ursae Majoris. The red arrow shows the motion of 84 Ursae Majoris during the next 10000 years (-3.17 arcmin in Right Ascension and 0.17 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 13h 47m 32s

Declination +54° 18’ 24”

Hour Angle 06h 30m 25s

Sidereal Time 20h 17m 57s

J2000

Right Ascension 13h 46m 35s

Declination +54° 25’ 58”

Galactic Coordinates

Galactic Longitude 106.38°

Galactic Latitude 60.89°

Finder Chart

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Finder chart for 84 Ursae Majoris.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.7

Class

84 Ursae Majoris is also a EuCr chemically peculiar star.

Absolute magnitude 1.02

Spectral Type B9

Color Index (B-V) -0.08

Temperature 11247K

The red dot in the diagram below shows where 84 Ursae Majoris is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 84 Ursae Majoris. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

84 Ursae Majoris is distant 281.52 light years from the Sun and it is moving towards the Sun at the speed of 2 kilometers per second.

Distance (parsec) 86.36

Distance (light year) 281.52

Radial Speed -2 km/s

Proper Motion RA -0.019 arcsec/y

Proper Motion Dec 0.001"/y

Alternative Designations

Flamsteed designation 84 Ursae Majoris

Henry Draper Catalogue HD120198

SAO Catalogue SAO28885

Hipparcos Catalogue HIP67231

Durchmusterung Catalogue BD+55 1634

General Catalogue of Variable Stars CR UMa

Visibility from Your Location

84 Ursae Majoris is circumpolar and transits at 22:23 UTC (altitude: 87.2°)

Set Location

Other stars in Ursa Major