51 Aquarii

51 Aquarii
Observation data
Epoch J2000      Equinox J2000
Constellation Aquarius
Right ascension 22h 24m 06.88433s[1]
Declination –04° 50′ 13.2692″[1]
Apparent magnitude (V) 5.78[2]
Characteristics
Spectral type A0 V[3]
U−B color index –0.11[2]
B−V color index –0.04[2]
Astrometry
Radial velocity (Rv)+6[4] km/s
Proper motion (μ) RA: +26.90[1] mas/yr
Dec.: –7.35[1] mas/yr
Parallax (π)8.04 ± 0.63[1] mas
Distance410 ± 30 ly
(124 ± 10 pc)
Details
Rotational velocity (v sin i)91[5] km/s
Other designations
BD–05 5780, HD 212404, HIP 110578, HR 8533, SAO 146067.[6]

51 Aquarii is the Flamsteed designation for a star in the equatorial constellation of Aquarius. It has an apparent visual magnitude is 5.78[2] and is located around 410 light-years (130 parsecs) from Earth.[1] This is an A-type main sequence star with a stellar classification of A0 V.[3] It has a high rate of rotation with a projected rotational velocity of 91 km/s.[5]

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 van Leeuwen, F. (November 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.
  2. ↑ 2.0 2.1 2.2 2.3 Nicolet, B. (1978), "Photoelectric photometric Catalogue of homogeneous measurements in the UBV System", Astronomy and Astrophysics Supplement Series 34: 1–49, Bibcode:1978A&AS...34....1N.
  3. ↑ 3.0 3.1 Cowley, A. et al. (April 1969), "A study of the bright A stars. I. A catalogue of spectral classifications", Astronomical Journal 74: 375–406, Bibcode:1969AJ.....74..375C, doi:10.1086/110819.
  4. ↑ Wilson, R. E. (1953), General Catalogue of Stellar Radial Velocities, Carnegie Institute of Washington, D.C., Bibcode:1953GCRV..C......0W.
  5. ↑ 5.0 5.1 Royer, F.; Zorec, J.; Gómez, A. E. (February 2007), "Rotational velocities of A-type stars. III. Velocity distributions", Astronomy and Astrophysics 463 (2): 671–682, arXiv:astro-ph/0610785, Bibcode:2007A&A...463..671R, doi:10.1051/0004-6361:20065224.
  6. ↑ "51 Aqr -- Star", SIMBAD Astronomical Database (Centre de Données astronomiques de Strasbourg), retrieved 2012-07-16

External links