Pi Serpentis

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Pi Serpentis
Observation data
Epoch J2000      Equinox J2000
Constellation Serpens
Right ascension 16h 02m 17.69166s [1]
Declination 22° 48′ 16.0302″ [1]
Apparent magnitude (V) 4.82 [2]
Characteristics
Spectral type A3V [2]
B−V color index +0.08 [2]
Astrometry
Radial velocity (Rv) -28.20[3] km/s
Proper motion (μ) RA: +4.03[1] mas/yr
Dec.: +23.60[1] mas/yr
Parallax (π) 18.22 ± 0.26[1] mas
Distance 179 ± 3 ly
(54.9 ± 0.8 pc)
Absolute magnitude (MV) 1.12 [4]
Other designations
44 Serpentis, FK5 3268, GC 21552, HIP 78554, HR 5972, HD 143894, SAO 84155 [2]
Database references
SIMBAD data

Pi Serpentis (π Ser, π Serpentis) is a star in the constellation Serpens, in its head (Serpens Caput).

Pi Serpentis is a white A-type main sequence dwarf with an apparent magnitude of +4.82.[2] It is approximately 179 light years from Earth.[1]

References[edit]

  1. ^ a b c d e f van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752Freely accessible. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.  Vizier catalog entry
  2. ^ a b c d e "Pi Serpentis". SIMBAD Astronomical Database. Retrieved 2015-10-17. 
  3. ^ Gontcharov, G. A. (November 2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. 
  4. ^ Absolute magnitude calculated as , where is the star's absolute magnitude, is the star's apparent magnitude, and is the star's measured parallax in arcseconds.