HD 204313

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HD 204313
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Capricornus
Right ascension 21h 28m 12.207s[1]
Declination –21° 43′ 34.52″[1]
Apparent magnitude (V) 7.99
Characteristics
Spectral type G5V
Apparent magnitude (B) 8.70
Apparent magnitude (J) 6.812
Apparent magnitude (H) 6.539
Apparent magnitude (K) 6.459
B−V color index 0.71
Astrometry
Radial velocity (Rv) –10.1 km/s
Proper motion (μ) RA: 42.86 ± 0.61[1] mas/yr
Dec.: -271.51 ± 0.36[1] mas/yr
Parallax (π) 21.11 ± 0.62[1] mas
Distance 155 ± 5 ly
(47 ± 1 pc)
Absolute magnitude (MV) 4.62
Details
Mass 1.045 ± 0.033 M
Temperature 5767 ± 17 K
Metallicity 0.18 ± 0.02
Age 3.38 ± 2.58 years
Other designations
CD–22°5691, GC 30045, HIP 106006, PPM 272526, SAO 190362
Database references
SIMBAD data
Exoplanet Archive data
Extrasolar Planets
Encyclopaedia
data

HD 204313 is an 8th magnitude G-type main sequence star located approximately 155 light years away in the constellation Capricornus.

Planet system[edit]

  • In August 2009, this sun-like star is found to have a gas giant planet similar in size to Jupiter in orbit around it.[2]
  • In 2nd 2012, the second and third planet was found. An Ice Giant like Neptune close to the star and another Jupiter sized planet far from its star.[3]
The HD 204313 system[2][3]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity Inclination Radius
c 0.054 (± 0.0054) MJ 0.2103 (± 0.0035) 34.873 (± 0.0388) 0.17 (± 0.09)
b 3.55 (± 0.2) MJ 3.04 (± 0.06) 1920.1 (± 25) 0.23 (± 0.04)
d 1.68 (± 0.3) MJ 3.93 (± 0.14) 2831.6 (± 150) 0.28 (± 0.09)

See also[edit]

References[edit]

Coordinates: Sky map 21h 28m 12.2063s, −21° 43′ 34.517″