1 Boötis

From Wikipedia, the free encyclopedia
Jump to: navigation, search
1 Boötis
Observation data
Epoch J2000      Equinox J2000
Constellation Boötes
Right ascension 13h 40m 40.46962s[1]
Declination +19° 57′ 20.5859″[1]
Apparent magnitude (V) 5.71[2]
Characteristics
Spectral type A1 V
U−B color index +0.02[2]
B−V color index +0.02[2]
Astrometry
Radial velocity (Rv) -26[3] km/s
Proper motion (μ) RA: -45.88[1] mas/yr
Dec.: +22.71[1] mas/yr
Parallax (π) 9.94 ± 0.54[1] mas
Distance 330 ± 20 ly
(101 ± 5 pc)
Absolute magnitude (MV) +0.79[4]
Details
1 Boö A
Mass 2.54 ± 0.09[4] M
Luminosity 56[4] L
Temperature 9,863[4] K
Rotational velocity (v sin i) 60[5] km/s
Age 323[4] Myr
1 Boö B
Mass 1.02[4] M
Luminosity 0.76[4] L
Temperature 5,370[4] K
Other designations
CCDM J13407+1958, HD 119055, HIP 66727, HR 5144, SAO 82942, WDS J13407+1957.
Database references
SIMBAD data
Data sources:
Hipparcos Catalogue,
CCDM (2002),
Bright Star Catalogue (5th rev. ed.)

1 Boötis (1 Boo) is a binary star at 327 light years away.[4] in the constellation Boötes.

References[edit]

  1. ^ a b c d e van Leeuwen, F. (November 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 
  2. ^ a b c Lutz, T. E.; Lutz, J. H. (June 1977), "Spectral classification and UBV photometry of bright visual double stars", Astronomical Journal 82: 431–434, Bibcode:1977AJ.....82..431L, doi:10.1086/112066 
  3. ^ Evans, D. S. (June 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 (June 20–24), University of Toronto: International Astronomical Union, Bibcode:1967IAUS...30...57E 
  4. ^ a b c d e f g h i Hubrig, S. et al. (June 2001), "Search for low-mass PMS companions around X-ray selected late B stars", Astronomy and Astrophysics 372: 152–164, arXiv:astro-ph/0103201, Bibcode:2001A&A...372..152H, doi:10.1051/0004-6361:20010452 
  5. ^ 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 

External links[edit]