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Gamma Muscae

Star in the constellation Musca From Wikipedia, the free encyclopedia

Gamma Muscae
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γ Muscae, Latinised as Gamma Muscae, is a blue-white hued star in the southern circumpolar constellation of Musca, the Fly. It can be seen with the naked eye, having an apparent visual magnitude of 3.87.[2] Based upon an annual parallax shift of 10.04 mas as seen from Earth, it is located about 325 light years from the Sun.

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A light curve for Gamma Muscae, plotted from TESS data[7]
Quick facts Constellation, Right ascension ...

This is a B-type main-sequence star with a stellar classification of B5 V.[3] It is a variable star that ranges between magnitudes 3.84 and 3.86 over a period of 2.7 days, and is classed as a slowly pulsating B star.[8] It is around five times as massive as the Sun.[9] The star is spinning rapidly with a projected rotational velocity of 205 km/s. This is giving it an oblate shape with an equatorial bulge that is 7% larger than the polar radius.[3]

Gamma Muscae is a proper motion member of the Lower Centaurus–Crux sub-group in the Scorpius–Centaurus OB association, the nearest such association of co-moving massive stars to the Sun.[5]

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