Astronomy:HD 153791

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HD 153791
Observation data
Equinox J2000.0]] (ICRS)
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

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]

References

  1. 1.0 1.1 1.2 1.3 1.4 van Leeuwen, F. (2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics 474 (2): 653–664, doi:10.1051/0004-6361:20078357, Bibcode2007A&A...474..653V 
  2. 2.0 2.1 2.2 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. doi:10.1134/S1063773706110065. Bibcode2006AstL...32..759G. 
  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, doi:10.1051/0004-6361:20010630, Bibcode2001A&A...373..625P 
  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, Bibcode1968MNSSA..27...11C 
  5. 5.0 5.1 McDonald, I. et al. (2012), "Fundamental Parameters and Infrared Excesses of Hipparcos Stars", Monthly Notices of the Royal Astronomical Society 427 (1): 343–57, doi:10.1111/j.1365-2966.2012.21873.x, Bibcode2012MNRAS.427..343M 
  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, doi:10.1051/0004-6361:20065224, Bibcode2007A&A...463..671R. 
  7. Mason, B. D. et al. (2014), "The Washington Visual Double Star Catalog", The Astronomical Journal 122: 3466–3471, doi:10.1086/323920, Bibcode2001AJ....122.3466M, http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=B/wds, retrieved 2015-07-22 

External links