V393 Scorpii

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Double star
V393 Scorpii
AladinLite
Observation
dates equinox :  J2000.0 , epoch : J2000.0
Constellation Scorpio
Right ascension 17 h 48 m 47.6 s
declination -35 ° 03 ′ 25.6 ″
Apparent brightness 7.59 mag
7.39 to 8.31 mag
Typing
B − V color index +0.12 
Spectral class B3 III
Variable star type DPV / EA 
Astrometry
parallax (1.56 ± 0.06)  mas
distance (2090 ± 80)  ly
640  pc
Proper movement 
Rec. Share: (+1.05 ± 0.12)  mas / a
Dec. portion: (−2.26 ± 0.09)  mas / a
Physical Properties
Other names
and catalog entries
Cordoba Survey CD −34 ° 12102
Henry Draper Catalog HD 161741 [1]
Hipparcos catalog HIP 87191 [2]
Tycho catalog TYC 7385-1101-1 [3]Template: Infobox star / maintenance / specification of the TYC catalog
2MASS catalog 2MASS J17484760-3503256 [4]

V393 Scorpii is a binary star system consisting of a giant of spectral class B and a companion at a distance of about 2000  light years . It belongs to the double-period variables .

Individual evidence

  1. ↑ a b c d e f V393 Sco. In: SIMBAD . Center de Données astronomiques de Strasbourg , accessed September 10, 2018 .
  2. ↑ a b V393 Sco. In: VSX. AAVSO, accessed September 10, 2018 .