HD 10180 c | |
Discovered: | 24 August 2010 |
Apsis: | astron |
Semimajor: | 0.0641± |
Mass: | >0.0416 |
Eccentricity: | 0.073 |
Period: | 5.75969 d |
Avg Speed: | 136 |
Arg Peri: | 328 |
Star: | HD 10180 |
HD 10180 c is an exoplanet approximately 130 light-years away in the constellation Hydrus.[1] It was discovered in 2010 using the radial velocity method. With a minimum mass comparable to that of Neptune,[2] it is of the class of planets known as Hot Neptunes. Dynamical simulations suggest that if the mass gradient was any more than a factor of two, the system would not be stable.
While planet c does not exist in any mean motion resonances, both planets with adjacent orbits (b and d) share near resonances with c.