Psi Scorpii

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Psi Scorpii
Observation data
Epoch J2000      Equinox J2000
Constellation Scorpius
Right ascension 16h 11m 59.98852s [1]
Declination −10° 03′ 51.2683″ [1]
Apparent magnitude (V) 4.94 [2]
Characteristics
Spectral type A3IV [2]
B−V color index +0.10 [2]
Astrometry
Radial velocity (Rv) -5.10[3] km/s
Proper motion (μ) RA: -21.98[1] mas/yr
Dec.: -23.74[1] mas/yr
Parallax (π) 20.96 ± 1.36[1] mas
Distance 160 ± 10 ly
(48 ± 3 pc)
Absolute magnitude (MV) 1.55 [4]
Other designations
15 Scorpii, FK5 3280, GC 21780, HIP 79375, HR 6031, HD 145570, SAO 141022 [2]
Database references
SIMBAD data

Psi Scorpii (ψ Sco, ψ Scorpii) is a star in the constellation Scorpius. Psi Scorpii is a white A-type subgiant with an apparent magnitude of +4.94.[2] It is approximately 156 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:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.  Vizier catalog entry
  2. ^ a b c d e "Psi Scorpii". 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.