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Propus

Tejat Prior, Pishpai, Praepes, Eta Geminorum, 7 Geminorum

Proper NamesPropus, Tejat Prior, Pishpai, Praepes
Bayer DesignationEta Geminorum
Flamsteed Number7 Geminorum
BSC2216
HD42995
ConstellationGemini
Right Ascension6h 15m 50s
Declination+22° 29' 54"
Distance391 light years
120 parsecs
MagnitudeApparent: +3.3
Absolute: -2.1
Spectral ClassM2.5III Red Giant
Optimum VisibilityJanuary
NotesA red giant star more than five hundred times more luminous than the Sun, Propus pulsates in brightness periodically, and is orbited by a much fainter binary companion.

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