V448 Carinae
V448 Carinae is a single star in the constellation Carina. It has the Bayer designation O Carinae, while "V448 Carinae" is the variable star designation. This object has an orange hue and is dimly visible to the naked eye with an apparent visual magnitude that fluctuates around 5.60. It is located at a distance of approximately 680 light years from the Sun based on parallax, and is drifting further away with a radial velocity of around +26 km/s.

This is an aging giant star with a stellar classification of K5III. Having exhausted the supply of hydrogen at its core, it has cooled and expanded off the main sequence and now has 51 times the girth of the Sun. It is classified as a probable semiregular variable star with a sub-type of SRd and a brightness that varies from visual magnitude 5.66 down to 5.86 over a period of 56.5 days. The star is an estimated 2.85 billion years old with 1.73 times the mass of the Sun. It is radiating 582 times the luminosity of the Sun from its swollen photosphere at an effective temperature of 3,974 K.
Q523
star
Concept
Q8928
constellation
Concept
Q10470
Carina
CEL
Q105616
Bayer designation
Concept
Q593448
variable star designation
Concept
Q124313
apparent visual magnitude
Concept
Q531
light year
Concept
Q525
Sun
CEL
Q906561
parallax
Concept
Q240105
radial velocity
Concept
Q5875
giant star
Concept
Q25377588
stellar classification
Concept
Q60790215
core
Concept
Q3450
main sequence
Concept
Q48440
girth of the Sun
Concept
Q1054411
semiregular variable star
CEL
Q180892
mass of the Sun
Concept
Q843877
luminosity of the Sun
Concept
Q6372
photosphere
Concept
Q854050
effective temperature
Concept
Q3781202
V448 Carinae
CEL
Q3781202
V448 Carinae
CEL
+448^^http://www.w3.org/2001/XMLSchema#decimal
448
NUMBER
+448^^http://www.w3.org/2001/XMLSchema#decimal
448
NUMBER
+5.60^^http://www.w3.org/2001/XMLSchema#decimal
5.60
NUMBER
++26^^http://www.w3.org/2001/XMLSchema#decimal
+26
NUMBER
+5^^http://www.w3.org/2001/XMLSchema#decimal
5
NUMBER
+51^^http://www.w3.org/2001/XMLSchema#decimal
51
NUMBER
+5.66^^http://www.w3.org/2001/XMLSchema#decimal
5.66
NUMBER
+5.86^^http://www.w3.org/2001/XMLSchema#decimal
5.86
NUMBER
+56.5^^http://www.w3.org/2001/XMLSchema#decimal
56.5
NUMBER
+2.85^^http://www.w3.org/2001/XMLSchema#decimal
2.85
NUMBER
+1.73^^http://www.w3.org/2001/XMLSchema#decimal
1.73
NUMBER
instance of
constellation
instance of