HD 153791

HD 153791 is a double star in the southern constellation of Ara. The primary is a sixth magnitude A-type main sequence star.[2] It has a magnitude 12.3 companion at an angular separation of 6.0″ along a position angle of 249°, as of 1999.[7]

HD 153791
Observation data
Epoch J2000      Equinox J2000
Constellation Ara
Right ascension 17h 03m 41.68344s[1]
Declination −47° 09′ 38.0565″[1]
Apparent magnitude (V) 6.07[2]
Characteristics
Spectral type A5V[3]
B−V color index +0.07[4]
Astrometry
Radial velocity (Rv)3.8±0.5[2] km/s
Proper motion (μ) RA: +0.04[1] mas/yr
Dec.: +5.36[1] mas/yr
Parallax (π)6.61 ± 0.44[1] mas
Distance490 ± 30 ly
(150 ± 10 pc)
Details
Luminosity66.6[5] L☉
Temperature8,346[5] K
Rotational velocity (v sin i)70[6] km/s
Other designations
CD-46° 11191, HD 153791, HIP 83481, HR 6323, SAO 227588.
Database references
SIMBADdata

References
  1. 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, S2CID 18759600
  2. Gontcharov, G. A. (November 2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. S2CID 119231169.
  3. Paunzen, E.; et al. (July 2001), "A spectroscopic survey for lambda Bootis stars. II. The observational data", Astronomy and Astrophysics, 373 (2): 625–632, Bibcode:2001A&A...373..625P, doi:10.1051/0004-6361:20010630
  4. Corben, P. M.; Stoy, R. H. (1968), "Photoelectric Magnitudes and Colours for Bright Southern Stars", Monthly Notes of the Astronomical Society of Southern Africa, 27: 11, Bibcode:1968MNSSA..27...11C
  5. McDonald, I.; et al. (2012), "Fundamental Parameters and Infrared Excesses of Hipparcos Stars", Monthly Notices of the Royal Astronomical Society, 427 (1): 343–57, arXiv:1208.2037, Bibcode:2012MNRAS.427..343M, doi:10.1111/j.1365-2966.2012.21873.x, S2CID 118665352
  6. Royer, F.; Zorec, J.; Gómez, A. E. (February 2007), "Rotational velocities of A-type stars. III. Velocity distributions", Astronomy and Astrophysics, 463 (2): 671–682, arXiv:astro-ph/0610785, Bibcode:2007A&A...463..671R, doi:10.1051/0004-6361:20065224, S2CID 18475298.
  7. Mason, B. D.; et al. (2014), "The Washington Visual Double Star Catalog", The Astronomical Journal, 122: 3466–3471, Bibcode:2001AJ....122.3466M, doi:10.1086/323920, retrieved 2015-07-22


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