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S Normae
S Normae (S Nor) is a variable star in the constellation Norma. It is the brightest member of the open cluster NGC 6087. It is a well-known Classical Cepheid variable with a range of 6.12 to 6.77 and a period of 9.75411 days. It is a yellow-white supergiant that is 6.3 times as massive as the Sun of spectral type F8-G0Ib. A binary, it has a 2.4 solar mass () companion that is a blue-white main sequence star of spectral type B9.5V. ==References==
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