HD 74156 is a yellow dwarf star (spectral type G0V) in the constellation of Hydra, 187 light years from the Solar System. [1] It is known to be orbited by two giant planets.

HD 74156 c is an extrasolar planet with a minimum mass about eight times that of Jupiter orbiting the star HD 74156. It is most likely a gas giant . This planet was discovered by Dominique Naef and Michel Mayor in April 2001 together with the planet HD 74156 b .

Oct 24, 2024 · HD 74156 c is a gas giant exoplanet that orbits a F-type star. Its mass is 8.665 Jupiters, it takes 6.7 years to complete one orbit of its star, and is 3.678 AU from its star. Its discovery was announced in 2003.

Oct 9, 2003 · We present our ELODIE radial-velocity measurements of HD 74156 and 14 Her (HD 145675). These stars exhibit low-amplitude radial-velocity variations induced by the presence of low-mass companions.

Oct 10, 2024 · HD 74156 c is a Confirmed extrasolar planet (exoplanet) that orbits the star HD 74156 in the constellation of Hydra

Detection of a Third Planet in the HD 74156 System Using the Hobby-Eberly Telescope

Sep 11, 2007 · We report the discovery of a third planetary mass companion to the G0 star HD 74156. High precision radial velocity measurements made with the Hobby-Eberly Telescope aided the detection of this object.

Jul 1, 2003 · Using numerical methods we thoroughly investigate the dynamical stability in the region between the two planets found in HD 74156. The two planets with minimum masses 1.56 M_JUP (HD 74156b) and...

The planetary system HD 74156 hosts at least 2 planets. This list shows all planetary and stellar components in the system. It gives a quick overview of the hierarchical architecture. This table lists all planets in the system HD 74156. HD 74156 b is a giant planet in a highly eccentric orbit.

We report the discovery of a third planetary-mass companion to the G0 star HD 74156. High-precision radial velocity measurements made with the Hobby-Eberly Telescope aided the detection of this object.