S Scuti

S Scuti is a carbon star located in the constellation Scutum. Parallax measurements by Hipparcos put it at a distance of approximately 1,300 light-years (390 parsecs). Its apparent magnitude is 6.80, making it visible to the naked eye only under excellent conditions.
S Scuti is a semiregular variable star. Its class is SRb, and its pulsation cycle lasts 148 days. It has a radius of . S Scuti is also surrounded by a roughly spherical shell of dust. The shell was known earlier from its carbon dioxide emission lines. The total mass of the dust is .