Phact - α Columbae (alpha Columbae)
Phact, also designated as α Columbae (alpha Columbae), is a variable and double sub-giant star of spectral class B7 in the constellation of Columba.
Phact visual magnitude is 2.64. Because of its brightness, Phact is clearly visible to the naked eye when observed from locations with dark skies, and should be also quite easily visible from light polluted areas.
Celestial Coordinates
Apparent
J2000
Galactic Coordinates
Finder Chart
Magnitude, Color, Spectral Class
The red dot in the diagram below shows where Phact is situated in the Hertzsprung–Russell diagram.
Star System Properties
Phact is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the Phact double sysyem:
Distance, Radial Speed, Proper Motion
Phact is distant 268.09 light years from the Sun and it is moving far from the Sun at the speed of 35 kilometers per second.
Alternative Designations
Visibility from Your Location
Today's Phact - α Columbae (alpha Columbae) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):