Propus - η Geminorum (eta Geminorum)
Propus, also designated as η Geminorum (eta Geminorum), is a variable and multiple giant star of spectral class M3 in the constellation of Gemini.
Propus visual magnitude is 3.28. Because of its moderate brightness, Propus 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.
Celestial Coordinates
Apparent
J2000
Galactic Coordinates
Finder Chart
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Finder chart for Propus - η Geminorum (eta Geminorum).
Magnitude, Color, Spectral Class
The red dot in the diagram below shows where Propus is situated in the Hertzsprung–Russell diagram.
Star System Properties
Propus 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 Propus double sysyem:
Distance, Radial Speed, Proper Motion
Propus is distant 349.04 light years from the Sun and it is moving far from the Sun at the speed of 19 kilometers per second.
Alternative Designations
Visibility from Your Location
Today's Propus - η Geminorum (eta Geminorum) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):