HD 30453

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HD 30453
Observation data
Epoch J2000      Equinox J2000
Constellation Auriga
Right ascension 04h 49m 19.07668s[1]
Declination +32° 35′ 17.4829″[1]
Apparent magnitude (V) 5.86[2]
Characteristics
Spectral type A8m[3]
U−B color index +0.14[2]
B−V color index +0.24[2]
Astrometry
Radial velocity (Rv) 16.654±0.012[4] km/s
Proper motion (μ) RA: +24.83[1] mas/yr
Dec.: -32.28[1] mas/yr
Parallax (π) 11.94 ± 0.49[1] mas
Distance 270 ± 10 ly
(84 ± 3 pc)
Orbit[4]
Period (P) 0508687±0.0000023 d
Eccentricity (e) 0.0
Periastron epoch (T) 673.72440±0.00043
Semi-amplitude (K1)
(primary)
0.442±0.017 km/s
Semi-amplitude (K2)
(secondary)
0.283±0.065 km/s
Details
Other designations
BD+32° 840, HD 30453, HIP 22407, HR 1528, SAO 57444.
Database references
SIMBAD data

HD 30453 (HR 1528) is a double-lined spectroscopic binary in the northern constellation of Auriga. The spectrum is that of metal-lined Am star. There is a third component at an angular separation of 0.04.[4]

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, Bibcode:2007A&A...474..653V, arXiv:0708.1752Freely accessible, doi:10.1051/0004-6361:20078357 
  2. ^ a b c Mendoza, E. E.; Gomez, V. T.; Gonzalez, S. (June 1978), "UBVRI photometry of 225 AM stars", Astronomical Journal, 83: 606–614, Bibcode:1978AJ.....83..606M, doi:10.1086/112242 
  3. ^ Cowley, A.; et al. (April 1969), "A study of the bright A stars. I. A catalogue of spectral classifications", Astronomical Journal, 74: 375–406, Bibcode:1969AJ.....74..375C, doi:10.1086/110819 
  4. ^ a b c Fekel, Francis C.; et al. (November 2013), "New Precision Orbits of Bright Double-lined Spectroscopic Binaries. VIII. HR 1528, HR 6993, 2 Sagittae, and 18 Vulpeculae", The Astronomical Journal, 146 (5): 20, Bibcode:2013AJ....146..129F, doi:10.1088/0004-6256/146/5/129, 129