5 Aquarii

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5 Aquarii
Observation data
Epoch J2000      Equinox J2000
Constellation Aquarius
Right ascension 20h 52m 08.694s[1]
Declination −05° 30′ 25.41″[1]
Apparent magnitude (V) 5.546
Characteristics
Spectral type B9III
U−B color index -0.27
B−V color index -0.08
Variable type Variable star
Astrometry
Radial velocity (Rv) -2.1 km/s
Proper motion (μ) RA: 0.70 ± 0.38[1] mas/yr
Dec.: -5.52 ± 0.23[1] mas/yr
Parallax (π) 5.02 ± 0.31[1] mas
Distance 650 ± 40 ly
(200 ± 10 pc)
Absolute magnitude (MV) 5.465
Details
Mass 18 M
Radius R
Luminosity 20,000 L
Temperature 10,000–30,000 K
Rotation 7.09753 d
Other designations
GSC 05186-02126, NSV 13360, TYC 5186-2126-1, HD 198667, BD-06° 5606, PPM 204547, CSV 102037, HIP 103005, SAO 144889, HR 7985, 2MASS J20520870-0530252
Database references
SIMBAD data
Data sources:
Hipparcos Catalogue,
CCDM (2002),
Bright Star Catalogue (5th rev. ed.)

5 Aquarii is a star in the constellation Aquarius. Its apparent magnitude is 5.55. It is roughly 650 light years from Earth

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