U Antliae

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U Antliae
Observation data
Epoch J2000      Equinox J2000
Constellation Antlia
Right ascension 10h 35m 12.852s[1]
Declination −39° 33′ 45.32″[1]
Apparent magnitude (V) 5.505
Characteristics
Spectral type N:v
U−B color index 7.1
B−V color index 2.88
Variable type LB
Astrometry
Radial velocity (Rv) 37 km/s
Proper motion (μ) RA: −31.02 ± 0.56[1] mas/yr
Dec.: 3.50 ± 0.53[1] mas/yr
Parallax (π) 3.73 ± 0.54[1] mas
Distance approx. 900 ly
(approx. 270 pc)
Absolute magnitude (MV) −5.22[2]
Details
Mass 1.04 M
Radius 350 R
Luminosity 5819[3] L
Temperature 3317[3] K
Age ? years
Other designations
HR 4153, CD-38 6579, 2MASS J10351285-3933453, HD 91793, PPM 287864, AAVSO 1030-39, HIP 51821, SAO 201533.
Database references
SIMBAD data

Coordinates: Sky map 10h 35m 12.8507s, −39° 33′ 45.319″

U Antliae (U Ant) is a star in the constellation Antlia.

U Antliae is a red C-type carbon star and is an irregular variable star that varies between magnitudes 5.27 and 6.04.[4] Approximately 900 light years from Earth, it shines with a luminosity approximately 5819 times that of the Sun and has a surface temperature of 3317 K.[3] It is surrounded by two shells of dust, thought to have been ejected 14,000 and 10,000 years ago.[5]

References

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