We have made a list of the five largest exoplanets so far discovered around the Universe. Also, all of the following planets are larger than Jupiter.
The largest planet in our Solar System is Jupiter. Since gas weighs much less than a rock, and gravity is the reason planets form, gas giant planets are much larger than rocky planets like Earth. They lack a solid, well-defined surface and are considered unpromising targets in the search for life.
KOI-368.01 is a giant exoplanet orbiting the star KOI-368. It is located about 3489.9 light-years away from us and it is 2.1 times more massive than Jupiter. The planet was discovered by the Kepler team and it was publicly announced on 2014. The extrasolar planet KOI-368.01 orbits around the star KOI-368 every 110.3 days with its orbital distance of 0.58 AU
4. CT Cha b
CT Cha b is a gas giant exoplanet that orbits an unknown-type star. However, CT Cha b might be a brown dwarf due to its large mass. It is 2.2 times more massive than Jupiter. There is evidence for material accreting onto the object at around 6×10^-10 solar masses per year. It takes 26472671.89 days for the gas giant to complete one orbit of its star, and is located about 538.2 light-years away from us. Its discovery was officially announced in November 2008.
3. ROXs 42Bb
ROXs 42Bb is likely a brown dwarf orbiting the very young star ROXs 42B about 440 light-years away which is a member of the ρ Ophiuchus star-forming region located in the constellation Ophiuchus. This giant planet is 2.5 times bigger than Jupiter. Its discovery was announced on October 17, 2013 by the astronomer Thayne Currie of University of Toronto.
2. GQ Lup b
GQ Lup b is a gas giant, similar to Jupiter, Saturn or Neptune and it’s located about 456.6 light-years away from us. It’s one of the first extrasolar planet candidates to be directly imaged. This giant exoplanet is 3.0 times more massive than Jupiter. The image was made with the VLT telescope at Paranal Observatory, Chile on June 25, 2004 and its discovery was officialy announced in April 2005.
1. HD 100546 b
And finally, the candidate for the largest exoplanet yet discovered is called HD 100546 and it is 6.9 times more massive than Jupiter. The planet’s size puts it near the border between a giant planet and a brown dwarf. This giant object lies about 70 times further from its star than the Earth does from the Sun. Evidence for this gas giant was gathered using the UVES echelle spectrograph at the VLT in Chile.