X Muscae--A Large Amplitude Red Variable

Volume 34 number 2 (2006)

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Peter F. Williams

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Abstract

Muscae is amongst the stars listed in the General Catalogue of Variable Stars as "not studied." Visual observations by the author during the 5-year interval 1999 through 2003 indicate this is a large amplitude variable star, probably of the Mira type. A visual magnitude range of 12.2 to fainter than 15.0 is found with a mean cycle of 266 ± 7 days. A preliminary ephemeris for determining maximum brightness is JD 2452085 + 266 ± 7 E days. Link to article on ADS