QS Aquilae

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QS Aquilae
Observation data
Epoch J2000      Equinox J2000
Constellation Aquila
Right ascension 19h 41m 05.528s[1]
Declination +13° 48′ 56.45″[1]
Apparent magnitude (V) 5.988
Characteristics
Spectral type B5V
U−B color index −0.52
B−V color index −0.08
Variable type Algol variable
Astrometry
Radial velocity (Rv) −14.2 km/s
Proper motion (μ) RA: −0.04 ± 0.60[1] mas/yr
Dec.: −11.47 ± 0.43[1] mas/yr
Parallax (π) 0.49 ± 0.62[1] mas
Distance approx. 7,000 ly
(approx. 2,000 pc)
Absolute magnitude (MV) 5.907
Details
Mass 4.5–6 M
Radius 3.8 R
Luminosity L
Temperature 17500 K
Metallicity ?
Rotation 58 Km/s
0,006881 Year
Age ? years
Orbit
Companion QS Aquilae B
Semi-major axis (a) 0,2"
Inclination (i) 313°
Other designations
2MASS J19410553+1348565, GSC 01069-03884, PPM 136767, HD 185936, SAO 105132, WDS J19411+1349, BD+13° 4098, WDS J19412+1349, CCDM J19411+1349AB, WDS J1941.1+1349, FK5 3574, HIP 96840, HR 7486.
Database references
SIMBAD data
Data sources:
Hipparcos Catalogue,
CCDM (2002),
Bright Star Catalogue (5th rev. ed.)

QS Aquilae is eclipsing binary of Algol type.

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