S Muscae
Star in the constellation Musca
S Muscae is a classical (δ) Cepheid variable star in the constellation Musca about 2,800 light years away.
S Muscae is a yellow supergiant ranging between spectral types F6Ib and G0Ib and magnitudes 5.89 to 6.49 over a period of 9.66 days. It is a luminous star around six times as massive as the Sun and 65.1 times the radius of the Sun. It is a binary star with a blue-white main sequence star companion likely to be of spectral type B3V to B5V with a mass of just over five solar masses, one of the hottest and brightest companions of a Cepheid known. The two stars orbit each other every 505 days.
S Muscae has been found to lie within the faint star cluster ASCC 69.
Sources and credits
This article is adapted from the Wikipedia article “S Muscae”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.
Images, from Wikimedia Commons:
- Musca constellation map.svg by Musca_constellation_map.png: Torsten Bronger derivative work: Kxx (talk), CC BY-SA 3.0
- SMusLightCurve.png by PopePompus, CC BY-SA 4.0
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