HD 3322

From Wikipedia, the free encyclopedia
  (Redirected from PY Andromedae)
Jump to: navigation, search
HD 3322
Observation data
Epoch J2000.0 ICRS      Equinox J2000.0 ICRS
Constellation Andromeda
Right ascension 0h 36m 20.099s[1]
Declination 27° 15′ 17.15″[1]
Apparent magnitude (V) 6.51[2]
Characteristics
Spectral type B8IIIMNp...[2]
Variable type α2 CVn
Astrometry
Radial velocity (Rv) 1[3] km/s
Proper motion (μ) RA: 15.96 ± 0.85[1] mas/yr
Dec.: −11.11 ± 0.53[1] mas/yr
Parallax (π) 4.59 ± 0.65[1] mas
Distance approx. 700 ly
(approx. 220 pc)
Absolute magnitude (MV) -0.153
Details
Mass 4.3[2] M
Radius 4.8[2] R
Luminosity 400[2] L
Other designations
PY Andromedae, HIP 2865, HR 149, SAO 74136

HD 3322 is an Alpha2 Canum Venaticorum variable type variable star. It is in the constellation of Andromeda.

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. ^ a b c d e "HIP 2865", Wolfram Alpha, retrieved 2013-08-09 
  3. ^ "V* PY And -- Variable Star of alpha2 CVn type", SIMBAD Astronomical Database(Centre de donées astronomiques de Strasbourg), retrieved 2013-08-09