DV Aquarii

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DV Aquarii
Observation data
Epoch J2000      Equinox J2000
Constellation Aquarius
Right ascension 20h 58m 41.8401s
Declination −14° 28′ 59.26″
Apparent magnitude (V) 5.89 - 6.25[1]
Characteristics
Spectral type A9V
U−B color index 0.11
B−V color index 0.23
Variable type Beta Lyrae variable
Astrometry
Radial velocity (Rv) 10.30 ± 7.4 km/s
Proper motion (μ) RA: -55.29 ± 0.44 mas/yr
Dec.: -19.11 ± 0.33 mas/yr
Parallax (π) 11.47 ± 0.45 mas
Distance 280 ± 10 ly
(87 ± 3 pc)
Details
Mass 3.1 M
Radius 2.1 R
Luminosity 40 L
Temperature 7,500–10,000 K
Orbit
Companion DV Aquarii B
Period (P) 0.0043135687885[citation needed] yr
Other designations
BD-15° 5848, HIP 103545, HR 8024, HD 199603, SAO 164027.
Database references
SIMBAD data
Data sources:
Hipparcos Catalogue,
CCDM (2002),
Bright Star Catalogue (5th rev. ed.)

DV Aquarii is a Beta Lyrae type eclipsing binary. It varies between magnitudes 5.89 and 6.25 over 1.6 days.[1]

References[edit]

  1. ^ a b Watson, Christopher (19 April 2012). "DV Aquarii". The International Variable Star Index. American Association of Variable Star Observers. Retrieved 4 June 2015.