HD 165493

HD 165493
Observation data
Epoch J2000      Equinox J2000
Constellation Ara
Right ascension 18h 08m 30.10807s[1]
Declination −45° 46′ 01.2534″[1]
Apparent magnitude (V) 6.153[2] (6.15 + 9.55)[3]
Characteristics
Spectral type B7.5II[2]
U−B color index −0.49[4]
B−V color index −0.08[4]
Astrometry
Radial velocity (Rv)−35.0±4.3[5] km/s
Proper motion (μ) RA: −2.88[1] mas/yr
Dec.: −17.29[1] mas/yr
Parallax (π)3.68 ± 0.60 mas[1]
Distanceapprox. 900 ly
(approx. 270 pc)
Details
HD 165493 A
Mass3.98±0.10[2] M☉
Luminosity457[2] L☉
Temperature12,250[2] K
Other designations
CD-45 12215, HD 165493, HIP 88859, HR 6759, SAO 228734, WDS J18085-4546AB.
Database references
SIMBADdata

HD 165493 is double star in the southern constellation of Ara. As of 2011, the two components have an angular separation of 4″ along a position angle of 257°.[3]

  1. ^ a b c d e Cite error: The named reference van Leeuwen2007 was invoked but never defined (see the help page).
  2. ^ a b c d e Cite error: The named reference hohle was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference WDSC2014 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference aass34_1 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Gontcharov was invoked but never defined (see the help page).