HD 73256

HD 73256, also known as CS Pyxidis, is a star located approximately 123 light years away in the constellation Pyxis. The spectral type is G8/K0V with a radius 0.94 times, luminosity 0.74 times and a mass 1.01 times that of the Sun. It is thought to be about a billion years old.[3][2][1]

The HD 73256 planetary system[3]
Companion
(in order from star)		 Mass Semimajor axis
(AU)		 Orbital period
(days)		 Eccentricity Inclination Radius
b >1.87 ± 0.49 MJ 0.037 2.54858 ± 0.00016 0.029 ± 0.02 — —
HD 73256
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Pyxis
Right ascension  08h 36m 23.016s[1]
Declination −30° 02′ 15.45″[1]
Apparent magnitude (V) 8.08
Characteristics
Spectral type G8/K0V
Astrometry
Proper motion (μ) RA: −180.11±0.35[1] mas/yr
Dec.: 66.81±0.47[1] mas/yr
Parallax (π)26.48 ± 0.64[1] mas
Distance123 ± 3 ly
(37.8 ± 0.9 pc)
Details
Mass1.01±0.03[2] M☉
Radius0.94±0.02[2] R☉
Luminosity0.74±0.01[2] L☉
Surface gravity (log g)4.49±0.03[2] cgs
Temperature5532±36[2] K
Age2.5±2.3[2] Gyr
Other designations
CS Pyxidis, BD−29° 6456, HIP 42214, SAO 176159
Database references
SIMBADdata

See also

References
  1. 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. Bonfanti, A.; et al. (2015). "Revising the ages of planet-hosting stars". Astronomy and Astrophysics. 575. A18. arXiv:1411.4302. Bibcode:2015A&A...575A..18B. doi:10.1051/0004-6361/201424951.
  3. Udry, S.; et al. (2003). "The CORALIE survey for southern extra-solar planets X. A Hot Jupiter orbiting HD 73256". Astronomy and Astrophysics. 407 (2): 679–684. arXiv:astro-ph/0304248. Bibcode:2003A&A...407..679U. doi:10.1051/0004-6361:20030815.


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