HD 15115

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HD 15115
Observation data
Epoch J2000      Equinox J2000
Constellation Cetus
Right ascension 02h 26m 16.24s[1]
Declination +06° 17′ 33.2″[1]
Apparent magnitude (V) 6.79[2]
Characteristics
Spectral type F2[2]
B−V color index 0.399[2]
Variable type None
Astrometry
Proper motion (μ) RA: +86.31 ± 0.71[1] mas/yr
Dec.: -49.97 ± 0.45[1] mas/yr
Parallax (π) 22.11 ± 0.64[1] mas
Distance 148 ± 4 ly
(45 ± 1 pc)
Absolute magnitude (MV) 7.15
Details
Age 500[2] Myr
Other designations
HIP 11360, BD+05° 338, SAO 110532
Database references
SIMBAD data

HD 15115 is a yellow-white star.

The asymmetric disk encircling the star was discovered using the Hubble Space Telescope and further investigated by the W.M. Keck Observatory.

The reason for the asymmetry is thought to be the gravitational pull of a companion star, an exoplanet, or interaction with the local interstellar medium.[3]

References[edit]

  1. ^ a b c d e van Leeuwen, F. (2007). "HIP 11360". Hipparcos, the New Reduction. Retrieved 2010-08-22. 
  2. ^ a b c d Decin, G. et al. (November 2003), "Age Dependence of the Vega Phenomenon: Observations", The Astrophysical Journal 598 (1): 636–644, arXiv:astro-ph/0308294, Bibcode:2003ApJ...598..636D, doi:10.1086/378800 
  3. ^ http://adsabs.harvard.edu/abs/2009ApJ...702..318D

External links[edit]