HD 86226

HD 86226
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Hydra
Right ascension 09h 56m 29.84s
Declination –24° 05′ 57.8″
Apparent magnitude (V) 7.932
Characteristics
Spectral type G2V
Apparent magnitude (B) 8.563
Apparent magnitude (R) 7.71
Apparent magnitude (J) 6.839
Apparent magnitude (H) 6.577
Apparent magnitude (K) 6.463
B−V color index 0.631
V−R color index 0.22
Variable type none
Astrometry
Radial velocity (Rv) +19.4 km/s
Proper motion (μ) RA: –176.37 mas/yr
Dec.: 46.72 mas/yr
Parallax (π) 23.54 ± 0.85 mas
Distance 139 ± 5 ly
(42 ± 2 pc)
Absolute magnitude (MV) 4.791
Details
Mass 1.02 M
Metallicity -0.04
Other designations
CD–23°8866, HIP 48739, PPM 256971, SAO 178205
Database references
SIMBAD data
NStED data
Extrasolar Planets
Encyclopaedia
data

HD 86226 is a G type yellowish white star found in the constellation of Hydra. Due to the reactions it had when placed under a Doppler test, 13 Magellan Doppler Velocity observations were made of an object found near the star. The object had a Keplerian orbit, was declared an exoplanet and dubbed HD 86226 b.[1][2][3][4][5]

The HD 86226 system[2]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity
b ≥1.5 ± 1.0 MJ 2.6 ± 0.4 1534 ± 280 0.73 ± 0.21

See also

References

  1. ^ "Constellations: Hydra 'the Sea Serpent'". BBC. http://www.bbc.co.uk/dna/h2g2/A35977909. Retrieved 2010-02-10. 
  2. ^ a b Arriagada, Pamela et al. (2010). "Five Long-period Extrasolar Planets in Eccentric orbits from the Magellan Planet Search Program". The Astrophysical Journal 711 (2). arXiv:1001.4093. Bibcode 2010ApJ...711.1229A. doi:10.1088/0004-637X/711/2/1229. 
  3. ^ "Query Results from the ADS Database". SAO/NASA Astrophysics Data System (ADS). http://adsabs.harvard.edu/cgi-bin/nph-abs_connect?text=HD+86226. Retrieved 2010-02-10. 
  4. ^ "Object query : HD 86226". SIMBAD. http://simbad.u-strasbg.fr/simbad/sim-id?protocol=html&Ident=HD+86226. Retrieved 2010-02-10. 
  5. ^ "http://voparis-exoplanet.obspm.fr/star.php?st=HD+86226". Exoplanet.fr. http://voparis-exoplanet.obspm.fr/star.php?st=HD+86226. Retrieved 2010-02-10. 

Coordinates: 09h 56m 29.84s, −24° 05′ 57.8″