HD 125040

From Wikipedia, the free encyclopedia
Jump to: navigation, search


HD 125040
Observation data
Epoch J2000      Equinox J2000
Constellation Boötes
Right ascension 14h 16m 32.843s[1]
Declination +20° 07′ 18.66″[1]
Apparent magnitude (V) 6.25
Characteristics
Spectral type F8V
B−V color index 0.49
Astrometry
Radial velocity (Rv) –8.4 km/s
Proper motion (μ) RA: –135.85 ± 0.57[1] mas/yr
Dec.: –93.28 ± 0.46[1] mas/yr
Parallax (π) 30.65 ± 0.64[1] mas
Distance 106 ± 2 ly
(32.6 ± 0.7 pc)
Absolute magnitude (MV) 6.74
Details
Mass 1.7 M
Radius 1.4 R
Luminosity L
Temperature 6,000–7,500 K
Other designations
BD+20° 2954, HIP 69751, HR 5346, SAO 83259, WDS J14165+2007AB, STF 1825AB.[2]
Database references
SIMBAD data
Data sources:
Hipparcos Catalogue,
CCDM (2002),
Bright Star Catalogue (5th rev. ed.)
Database references
SIMBAD data

HD 125040 is a visual binary star in the constellation Boötes with a semi-major axis of 105 astronomical units and a period of roughly 750 years.[3]

References[edit]

  1. ^ a b c d e 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.  Vizier catalog entry
  2. ^ "HR 5346 -- Star in double system". SIMBAD Astronomical Database. Centre de données astronomiques de Strasbourg. Retrieved 2014-10-02. 
  3. ^ Mason, Brian D. et al. (2013). "Speckle Interferometry at the U.S. Naval Observatory. XIX". The Astronomical Journal 146 (3). 56. Bibcode:2013AJ....146...56M. doi:10.1088/0004-6256/146/3/56.