HD 153053

From Wikipedia, the free encyclopedia
Jump to: navigation, search


HD 153053
Observation data
Epoch J2000      Equinox J2000
Constellation Ara
Right ascension 17h 00m 06.2794s
Declination −54° 35′ 49.845″
Apparent magnitude (V) 5.648
Characteristics
Spectral type A5 IV-V
U−B color index 0.1
B−V color index 0.19
Astrometry
Radial velocity (Rv) -20.2 km/s
Proper motion (μ) RA: -7.69 mas/yr
Dec.: -73.04 mas/yr
Parallax (π) 19.74 ± 0.8 mas
Distance 165 ± 7 ly
(51 ± 2 pc)
Absolute magnitude (MV) 5.824
Details
Mass 1.8[1] M
Luminosity 12.3[1] L
Temperature 8,000[1] K
Age 420 million[1] years
Other designations
SAO 244338, HIP 83187, HR 6297.
Database references
SIMBAD data
Data sources:
Hipparcos Catalogue,
CCDM (2002),
Bright Star Catalogue (5th rev. ed.)

HD 153053 is star in double system.

This star displays an excess emission of infrared radiation, suggesting the presence of an disk of dusty debris. This disk is orbiting at a radius of 49 AU from the host star.[1]

References[edit]

  1. ^ a b c d e Wyatt, M. C. et al. (July 2007), Steady State Evolution of Debris Disks around A Stars, The Astrophysical Journal 663 (1): 365–382, arXiv:astro-ph/0703608, Bibcode:2007ApJ...663..365W, doi:10.1086/518404 

External links[edit]