10h27m52.7s, −58° 44′22″HD 90853
10h27m 52.72877s[1]
−58° 44′ 21.8507″[1]
3.81[2]
Characteristics
B−V color index
0.317±0.019[2]
Radial velocity (Rv)
+9.4±0.7[2] km/s
Proper motion (μ)
RA: −14.47[1] mas/yr
Dec.: +2.36[1] mas/yr
Parallax (π)
Absolute magnitude (MV)
−4.44[2]
Details
Surface gravity (log g)
Metallicity [Fe/H]
Rotational velocity (v sin i)
22.0[7] km/s
Database references
HD 90853 is a single[9] star in the southern constellation Carina. It has the Bayer designation s Carinae, while HD 98053 is the identifier from the Henry Draper catalogue. This is a variable star with an apparent visual magnitude that ranges from 3.36 down to 3.51,[10] and thus is bright enough to be visible to the naked eye. It is located at a distance of approximately 1,340 light-years from the Sun based on parallax, and has an absolute magnitude of −4.44.[2] The star is drifting further away with a radial velocity of +9 km/s.[2]
This is an aging bright giantorsupergiant star that has been assigned stellar classifications of F2II[3] and F0Ib,[4] respectively. It has seven[5] times the mass of the Sun and has expanded to 45[6] times the Sun's radius. It is spinning with a projected rotational velocity of 22 km/s.[7] The star is radiating 3,466[6] times the luminosity of the Sun from its enlarged photosphere at an effective temperatureof6,598 K.[6]
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NGC
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