HD 6434

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HD 6434
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Phoenix[1]
Right ascension 01h 04m 40.151s[2]
Declination –39° 29′ 17.58″[2]
Apparent magnitude (V) 7.72
Characteristics
Spectral type G2/G3V
Astrometry
Proper motion (μ) RA: –169.44 ± 0.53[2] mas/yr
Dec.: –527.67 ± 0.36[2] mas/yr
Parallax (π) 24.17 ± 0.61[2] mas
Distance 135 ± 3 ly
(41 ± 1 pc)
Other designations
CD–40°239, GCRV 51158, GJ 9037, HIP 5054, LFT 102, LHS 1188, LPM 57, LTT 610, SAO 192911[3]

HD 6434 is an 8th magnitude star in the constellation of Phoenix. It is a very Sun-like yellow dwarf star, but younger, being 3,200 million years old. Yellow dwarfs are not very luminous, so at a distance of 130 light years it is not visible to the unaided eye. With binoculars it is readily visible under ideal observing conditions.

In 2000, a planet was observed orbiting it.[4]

The HD 6434 planetary system[5]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity Inclination Radius
b >0.39 MJ 0.14 21.998 ± 0.009 0.17 ± 0.03

See also[edit]

References[edit]

  1. ^ Roman, Nancy G. (1987). "Identification of a Constellation From a Position". Publications of the Astronomical Society of the Pacific 99 (617): 695–699. Bibcode:1987PASP...99..695R. doi:10.1086/132034.  Vizier query form
  2. ^ 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
  3. ^ "HD 6434 -- High proper-motion Star". SIMBAD Astronomical Database. Centre de données astronomiques de Strasbourg. Retrieved 2014-09-08. 
  4. ^ "European Southern Observatory: Six Extrasolar Planets Discovered". SpaceRef Interactive Inc. 7 August 2000. Retrieved 15 August 2009. 
  5. ^ Mayor, M. et al. (2004). "The CORALIE survey for southern extra-solar planets XII. Orbital solutions for 16 extra-solar planets discovered with CORALIE". Astronomy and Astrophysics 415 (1): 391–402. arXiv:astro-ph/0310316. Bibcode:2004A&A...415..391M. doi:10.1051/0004-6361:20034250. 

External links[edit]

Coordinates: Sky map 01h 04m 40.1511s, −39° 29′ 17.583″