U Antliae

From Wikipedia, the free encyclopedia
Jump to: navigation, search
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) -1.52
Details
Mass 1.04 M
Radius 350 R
Luminosity 6200 L
Temperature 2650 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.[2] It is approximately 836 light years from Earth.

References[edit]

  1. ^ a b c d e van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry
  2. ^ Otero, Sebastian (3 November 2011). "U Antliae". AAVSO Website. American Association of Variable Star Observers. Retrieved 25 July 2014.