HD 9578 b

HD 9578 b
Exoplanet List of exoplanets
Parent star
Star HD 9578
Constellation Sculptor
Right ascension (α) 01h 33m 17.1440s
Declination (δ) –38° 14 42.058
Apparent magnitude (mV) 8.201
Distance186.75 ± 9.45 ly
(57.24 ± 2.9 pc)
Spectral type G1V
Orbital elements
Semi-major axis(a) 1.27 AU
(190 Gm)
Orbital period(P) 494 d
(1.35 y)
Physical characteristics
Minimum mass(m sin i)0.62 MJ
Discovery information
Discovery date October 19, 2009
Discoverer(s) Segransan et al.
Discovery method radial velocity (HARPS)
Discovery site La Silla Observatory
Discovery status Unpublished
Database references
Extrasolar Planets
Encyclopaedia
data
SIMBADdata
Exoplanet Archivedata
Open Exoplanet Cataloguedata

HD 9578 b is an extrasolar planet which orbits the G-type main sequence star HD 9578, located approximately 187 light years away in the constellation Sculptor. This planet has at least five-eighths the mass of Jupiter and takes four-thirds years to orbit the star at a semimajor axis of 1.27 AU. However unlike most other known exoplanets, its eccentricity is not known, but it is typical that its inclination is not known. This planet was detected by HARPS on October 19, 2009, together with 29 other planets.

Coordinates: 01h 33m 17.1440s, −38° 14′ 42.058″

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