HD 6718 b

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HD 6718 b
Exoplanet List of exoplanets
Parent star
Star HD 6718
Constellation Cetus
Right ascension (α) 01h 07m 48.66s[1]
Declination (δ) –08° 14′ 01.3″[1]
Apparent magnitude (mV) 8.450
Distance 179 ± 7[1] ly
(55 ± 2.9[1] pc)
Spectral type G0V
Orbital elements
Semi-major axis (a) 3.65 AU
(545 Gm)
    66.3 mas
Orbital period (P) 2496 d
(6.83 y)
Physical characteristics
Minimum mass (m sin i) 1.65 MJ
Discovery information
Discovery date October 19, 2009
Discoverer(s) Naef et al.
Discovery method radial velocity (HARPS)
Discovery site La Silla Observatory
Discovery status Published[2]
Other designations
HIP 5301 b
Database references
Extrasolar Planets
Exoplanet Archive data
Open Exoplanet Catalogue data

HD 6718 b (also known as HIP 5301 b) is an extrasolar planet which orbits the G-type main sequence star HD 6718, located approximately 179 light years away in the constellation Cetus. This planet has at least five-thirds the mass of Jupiter and takes nearly seven years to orbit the star at a semimajor axis of 3.65 AU.[2] 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: Sky map 01h 07m 48.6625s, −08° 14′ 01.341″