α Geminorum (alpha Geminorum)
α Geminorum is a multiple main-sequence star of spectral class A2 in the constellation of Gemini.
α Geminorum visual magnitude is 2.88. Because of its brightness, α Geminorum 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
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Finder chart for α Geminorum (alpha Geminorum).
Magnitude, Color, Spectral Class
The red dot in the diagram below shows where α Geminorum is situated in the Hertzsprung–Russell diagram.
Star System Properties
α Geminorum is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the α Geminorum double sysyem:
Distance, Radial Speed, Proper Motion
α Geminorum is distant 51.53 light years from the Sun and it is moving towards the Sun at the speed of 1 kilometers per second.
Alternative Designations
Visibility from Your Location
Today's α Geminorum (alpha Geminorum) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):