HD 212301 b

HD 212301 b
Exoplanet List of exoplanets
[[Image:|300px]]
Parent star
Star HD 212301
Constellation Octans
Right ascension (α) 22h 27m 30.9195s
Declination (δ) –77° 43′ 04.521″
Apparent magnitude (mV) 7.77
Distance171.93 ly
(52.71 pc)
Spectral type F8V
Orbital elements
Semi-major axis(a) 0.0341 AU
(5.10 Gm)
Periastron (q) 0.0341 AU
(5.10 Gm)
Apastron (Q) 0.0341 AU
(5.10 Gm)
Eccentricity (e) 0
Orbital period(P) 2.24572 ± 28 d
    (53.897 h)
Orbital speed (υ) 166 km/s
Argument of
periastron		 (ω) 0°
Time of periastron (T0) 2453549.195 ± 0.004 JD
Semi-amplitude (K) 59.5 ± 0.7 m/s
Physical characteristics
Minimum mass(m sin i)0.396 MJ
Discovery information
Discovery date August 22, 2005
Discoverer(s) Lo Curto et al.
Discovery method Doppler spectroscopy
Discovery site La Silla Observatory
Discovery status Published

HD 212301 b is an extrasolar planet located approximately 172 light-years (53 parsecs) away in the constellation of Octans, orbiting the star HD 212301. It has an orbital period of 2.25 Earth days. The orbital distance is 0.0341 astronomical units or 5.10 gigameters.[1]

On August 22, 2005, taking place in ESO La Silla Observatory in Chile, the planet was discovered by Lo Curto who used the HARPS spectrometer.

See also

References

  1. ↑ Lo Curto, G.; et al. (2006). "The HARPS search for southern extra-solar planets VII. A very hot Jupiter orbiting HD 212301". Astronomy & Astrophysics. 451 (1): 345–350. arXiv:1411.7048. Bibcode:2006A&A...451..345L. doi:10.1051/0004-6361:20054083.
  • "Notes for planet HD 212301 b". The Extrasolar Planets Encyclopaedia. Retrieved 2008-08-29.
  • "HD 212301". Exoplanets. Retrieved 2008-08-29.

Coordinates: 22h 27m 30.9195s, −77° 43′ 04.521″


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