Astronomy:HD 153221

From HandWiki
HD 153221
Observation data
Equinox J2000.0]] (ICRS)
Constellation Ara
Right ascension  17h 00m 26.95941s[1]
Declination −48° 38′ 51.9319″[1]
Apparent magnitude (V) 6.00[2] (6.34 + 7.69)[3]
Characteristics
Spectral type G8/K0 III + G[4]
B−V color index +0.88[2]
Astrometry
Radial velocity (Rv)−28.6[5] km/s
Proper motion (μ) RA: −17.93[1] mas/yr
Dec.: −80.49[1] mas/yr
Parallax (π)9.36 ± 0.75[1] mas
Distance350 ± 30 ly
(107 ± 9 pc)
Details
Luminosity49.5[6] L
Temperature4,993[6] K
Rotational velocity (v sin i)4.4[7] km/s
Other designations
CD-48° 11360, HD 153221, HIP 83216, HR 6300, SAO 227542.
Database references
SIMBADdata

HD 153221 is a double star in the southern constellation of Ara. As of 2012, the pair have an angular separation of 1.10 along a position angle of 172°.[3]

References

  1. 1.0 1.1 1.2 1.3 1.4 van Leeuwen, F. (November 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 Nicolet, B. (1978), "Photoelectric photometric Catalogue of homogeneous measurements in the UBV System", Astronomy and Astrophysics Supplement Series 34: 1–49, Bibcode1978A&AS...34....1N. 
  3. 3.0 3.1 Mason, B. D. et al. (2014), The Washington Visual Double Star Catalog, doi:10.1086/323920, Bibcode2001AJ....122.3466M, http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=B/wds, retrieved 2015-07-22 
  4. Houk, Nancy (1978), Michigan catalogue of two-dimensional spectral types for the HD stars, 2, Ann Arbor: Dept. of Astronomy, University of Michigan, Bibcode1978mcts.book.....H. 
  5. Evans, D. S. (June 20–24, 1966), "The Revision of the General Catalogue of Radial Velocities", in Batten, Alan Henry; Heard, John Frederick, Determination of Radial Velocities and their Applications, Proceedings from IAU Symposium no. 30, University of Toronto: International Astronomical Union, Bibcode1967IAUS...30...57E. 
  6. 6.0 6.1 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 
  7. Schröder, C.; Reiners, A.; Schmitt, J. H. M. M. (January 2009), "Ca II HK emission in rapidly rotating stars. Evidence for an onset of the solar-type dynamo", Astronomy and Astrophysics 493 (3): 1099–1107, doi:10.1051/0004-6361:200810377, Bibcode2009A&A...493.1099S, http://goedoc.uni-goettingen.de/goescholar/bitstream/handle/1/9690/aa10377-08.pdf?sequence=2. 

External links