μ Columbae (mu Columbae)

Below the horizon. Rise: 2:56 | Tran: 5:25 | Set: 7:54

Alt: -59.72° Az: 296.74° Direction: West-North-West

μ Columbae is a variable main-sequence star of spectral class O9 in the constellation of Columba.

μ Columbae visual magnitude is 5.17. Because of its faintness, μ Columbae 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 μ Columbae. The red arrow shows the motion of μ Columbae during the next 10000 years (1.50 arcmin in Right Ascension and -4.17 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 05h 46m 55s

Declination -32° 17’ 53”

Hour Angle 09h 51m 14s

Sideral Time 15h 38m 09s

J2000

Right Ascension 05h 45m 59s

Declination -32° 18’ 23”

Galactic Coordinates

Galactic Longitude 237.29°

Galactic Latitude -27.1°

Finder Chart

Simplified finder chart for μ Columbae (mu Columbae).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.17

Class Main-sequence

Absolute magnitude -2.82

Spectral Type O9V

Color Index (B-V) -0.28

Temperature 15882K

The red dot in the diagram below shows where μ Columbae is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of μ Columbae. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

μ Columbae is distant 1,293.65 light years from the Sun and it is moving far from the Sun at the speed of 109 kilometers per second.

Distance (parsec) 396.83

Distance (light year) 1,293.65

Radial Speed 109 km/s

Proper Motion RA 0.009 arcsec/y

Proper Motion Dec -0.025"/y

Alternative Designations

Bayer designation μ Columbae
(mu Columbae)

Henry Draper Catalogue HD38666

SAO Catalogue SAO196149

Hipparcos Catalogue HIP27204

Durchmusterung Catalogue CD-32 2538

General Catalogue of Variable Stars 2630

Visibility from Your Location

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

Azimuth: 122.3° RISE 2:56

Max altitude: 6.2° TRANSIT 5:25

Azimuth: 237.7° SET 7:54

Set Location

Other stars in Columba