Pi2 Pegasi

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Pi2 Pegasi
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Pegasus
Right ascension 22h 09m 59.24371s[1]
Declination +33° 10′ 41.5976″ [1]
Apparent magnitude (V) +4.29[2]
Characteristics
Spectral type F5 III
Astrometry
Radial velocity (Rv) +5.10 ± 0.9 km/s
Proper motion (μ) RA: -12.87 ± 0.12[1] mas/yr
Dec.: –18.95 ± 0.16[1] mas/yr
Parallax (π) 12.40 ± 0.17[1] mas
Distance 263 ± 4 ly
(81 ± 1 pc)
Other designations
29 Peg, BD+32 4352, HD 210459, HIP 109410, HR 8454, SAO 72077.[2]

Pi2 Pegasi2 Peg, π2 Pegasi) is a star in the constellation Pegasus. It is a yellow-white subgiant that is 2.5 times as massive as the Sun and has expanded to 8 times the Sun's radius and brightened to 92 times the Sun's luminosity.[3]

References[edit]

  1. ^ a b c d e van Leeuwen, F. (November 2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2): 653–664, arXiv:0708.1752free to read, Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357 
  2. ^ a b SIMBAD, Pi2 Pegasi (accessed 16 March 2016)
  3. ^ Kaler, James B. "Pi Pegasi". Stars. University of Illinois. Retrieved 16 March 2016.