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Theta Muscae
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<p>Theta Muscae (θ Muscae) is a multiple <a href="/facts/Star_system/1vX99BMV">star system</a> in the southern <a href="/facts/Constellation/nBQqgW8A">constellation</a> <a href="/facts/Musca/WWxA9HfQ">Musca</a> ("the <a href="/facts/Housefly/GFbeB3In">Fly</a>"), containing a <a href="/facts/Wolf-Rayet_star/YxHnTsF5">Wolf-Rayet star</a> and two massive companions. With an <a href="/facts/Apparent_magnitude/7pCTF1Me">apparent magnitude</a> of 5.5, it is the second-brightest Wolf–Rayet star in the sky, although much of the visual brightness comes from the massive companions and it is not one of the closest of its type. </p>