HD 88366
S Carinae (HD 88366) is a variable star in the constellation Carina.

S Carinae is an M-type red giant with a mean apparent magnitude of +6.94. It is approximately 1,620 light years from Earth. It is classified as a Mira type variable star and its brightness varies between magnitude +4.5 and +10.0 with a period of 149.49 days. It has one of the earliest spectral types, and hence the hottest temperatures, of any Mira variable, and has a relatively short period for the class. It is a pulsating star, with the temperature being highest at maximum visual brightness and lowest at the visual minimum.

S Carinae has exhausted its core hydrogen and expanded to become a red giant. It has also exhausted its core helium and evolved to the asymptotic giant branch, where it fuses hydrogen and helium in separate shells outside the core.
Q6243
variable star
Concept
Q8928
constellation
Concept
Q10470
Carina
CEL
Q25377588
M-type
Concept
Q50081
red giant
Concept
Q124313
apparent magnitude
Concept
Q531
light years
Concept
Q2
Earth
CEL
Q744691
Mira type
CEL
Q6243
variable star
Concept
Q50089
asymptotic giant branch
Concept
Q3781855
HD 88366
CEL
++6.94^^http://www.w3.org/2001/XMLSchema#decimal
+6.94
NUMBER
++4.5^^http://www.w3.org/2001/XMLSchema#decimal
+4.5
NUMBER
++10.0^^http://www.w3.org/2001/XMLSchema#decimal
+10.0
NUMBER
constellation
instance of