ξ Ursae Majoris (xi Ursae Majoris)

Above the horizon. Rise: 10:40 | Tran: 19:57 | Set: 5:18

Alt: 64.79° Az: 134.83° Direction: South-East

ξ Ursae Majoris is a variable and multiple hypergiant star of spectral class G0 in the constellation of Ursa Major.

ξ Ursae Majoris visual magnitude is 4.87. Because of its moderate brightness, ξ Ursae Majoris is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

Image of ξ Ursae Majoris (xi Ursae Majoris) star

DSS2 image of ξ Ursae Majoris. The red arrow shows the motion of ξ Ursae Majoris during the next 1000 years (-7.20 arcmin in Right Ascension and -9.77 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 11h 19m 32s

Declination +31° 23’ 24”

Hour Angle 22h 37m 06s

Sidereal Time 09h 56m 39s

J2000

Right Ascension 11h 18m 10s

Declination +31° 31’ 45”

Galactic Coordinates

Galactic Longitude 195.08°

Galactic Latitude 69.25°

Finder Chart

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Finder chart for ξ Ursae Majoris (xi Ursae Majoris).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.87

Class Hypergiant

Absolute magnitude 4.78

Spectral Type G0V

Color Index (B-V)

Temperature 10125K

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

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

Star System Properties

ξ 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 ξ Ursae Majoris double sysyem:

Main star magnitude 4.87

Secondary star magnitude 5.37

Magnitude difference 0.5

Separation 3.1 arcsec

Distance, Radial Speed, Proper Motion

ξ Ursae Majoris is distant 33.96 light years from the Sun and it is moving towards the Sun at the speed of 16 kilometers per second.

Distance (parsec) 10.42

Distance (light year) 33.96

Radial Speed -16 km/s

Proper Motion RA -0.432 arcsec/y

Proper Motion Dec -0.586"/y

Alternative Designations

Bayer designation ξ Ursae Majoris
(xi Ursae Majoris)

Flamsteed designation 53 Ursae Majoris

Henry Draper Catalogue HD98230

SAO Catalogue SAO62484

Durchmusterung Catalogue BD+32 2132

Gliese Catalogue Gl 423 B

General Catalogue of Variable Stars 5165

Aitken Double Star Catalogue ADS8119

Visibility from Your Location

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

Azimuth: 58.6° RISE 10:40

Max altitude: 69.9° TRANSIT 19:57

Azimuth: 301.4° SET 5:18

Set Location

Other stars in Ursa Major