3.28
Apparent Mag349
Distance (ly)M3Iab-II
Spectral Type3,600
Temperature (K)Eta Geminorum, also known as Propus, is a red giant at the foot of Castor.
Stellar Data
Apparent Magnitude3.28
Absolute Magnitude-1.84
Distance349 light-years
Spectral TypeM3Iab-II
Temperature3,600 K
Luminosity2,700 L☉
Radius120 R☉
Mass3.5 M☉
Right Ascension06h 14m 52.7s
Declination+22° 30′ 24.5″
ConstellationGemini
Notable Facts
- Also known as Propus meaning the forward foot
- It is a semi-regular variable and eclipsing binary
- The star is an M-type giant