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Gamma Canis Minoris

Binary star system in the constellation Canis Minor

| b-v = +1.43 | u-b = +1.53 Gamma Canis Minoris is a binary star system in the equatorial constellation Canis Minor. Its name is a Bayer designation that is Latinized from γ Canis Minoris, and abbreviated Gamma CMi or γ CMi. The orange colour is obvious when seen through binoculars. The system is visible to the naked eye with a combined apparent visual magnitude of +4.33. Based upon an annual parallax shift of as seen from Earth, this system is located at a distance of approximately 1040 ly from the Sun. It is drifting further away with a line of sight velocity of 47 km/s.

This spectroscopic binary star system has an orbital period of 389.31 days, a semimajor axis of 1.48 AU, and an eccentricity of 0.2586. Their variable radial velocity was discovered by H. M. Reese in 1902 at Lick Observatory. Both components are evolved, K-type giant stars, most likely on their first ascent along the red giant branch. The primary, component A, has a stellar classification of K4 III while the secondary, component B, may be K1: III.

References

| display-authors=1 | last1=Fekel | first1=F. C.

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k-type-giants spectroscopic-binaries canis-minor bayer-objects bright-star-catalogue-objects durchmusterung-objects flamsteed-objects henry-draper-catalogue-objects hipparcos-objects

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