HD 169830 c
Encyclopedia
HD 169830 c is an extrasolar planet
, most likely a gas giant
, three and a half times as massive as Jupiter
. It is likely to be smaller in radius but slightly larger than Jupiter. Its orbit is eccentric, with a period (year) of 1830 days.
Extrasolar planet
An extrasolar planet, or exoplanet, is a planet outside the Solar System. A total of such planets have been identified as of . It is now known that a substantial fraction of stars have planets, including perhaps half of all Sun-like stars...
, most likely a gas giant
Gas giant
A gas giant is a large planet that is not primarily composed of rock or other solid matter. There are four gas giants in the Solar System: Jupiter, Saturn, Uranus, and Neptune...
, three and a half times as massive as Jupiter
Jupiter
Jupiter is the fifth planet from the Sun and the largest planet within the Solar System. It is a gas giant with mass one-thousandth that of the Sun but is two and a half times the mass of all the other planets in our Solar System combined. Jupiter is classified as a gas giant along with Saturn,...
. It is likely to be smaller in radius but slightly larger than Jupiter. Its orbit is eccentric, with a period (year) of 1830 days.