HD 103197

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HD 103197
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Centaurus
Right ascension 11h 52m 52.979s[1]
Declination –50° 17′ 34.17″[1]
Apparent magnitude (V) 9.41
Characteristics
Spectral type K1Vp
Apparent magnitude (B) 10.26
Apparent magnitude (J) 7.916
Apparent magnitude (H) 7.600
Apparent magnitude (K) 7.426
B−V color index 0.85
Astrometry
Proper motion (μ) RA: –80.24 ± 0.91[1] mas/yr
Dec.: 6.61 ± 0.99[1] mas/yr
Parallax (π) 18.82 ± 1.41[1] mas
Distance 170 ± 10 ly
(53 ± 4 pc)
Absolute magnitude (MV) 5.95
Details
Mass 0.76 M
Radius 0.88 ± 0.11 R
Luminosity 0.434 ± 0.073 L
Surface gravity (log g) 4.28 cgs
Temperature 5020 ± 100 K
Metallicity [Fe/H] 0.21 dex
Other designations
CD−49°6573, HIP 57931, PPM 769972
Database references
SIMBAD data
Exoplanet Archive data
Extrasolar Planets
Encyclopaedia
data

HD 103197 is a 9th magnitude K-type main sequence star located approximately 170 light years away[1] in the constellation Centaurus. This star is smaller, cooler, dimmer, and less massive than our Sun. Also its metal content is thirteen-eighths as much as the Sun. In 2009, a gas giant planet was found in orbit around the star.

The HD 103197 planetary system[2]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity Inclination Radius
b ≥31.2 ± 2.0 M 0.249 ± 0.004 47.84 ± 0.03 0.0(fixed)

See also[edit]

References[edit]

Coordinates: Sky map 11h 52m 52.9787s, −50° 17′ 34.160″