WASP-80b is a gas-giant planet, about the same size as Jupiter, but much bigger than our Earth.

Despite being a similar size to Jupiter, WASP-80b has only half its mass, so it is a bloated planet that is hotter inside than Jupiter.

WASP-80b transits a small, red-dwarf star, WASP-80, that has a spectral type of K7. That means it is about half the size of our Sun and much dimmer.

WASP-80b orbits its star in only 3.1 days at a distance of 5.2 million kilometres. Thus it has a much closer orbit than any of the planets in our Solar System.

WASP-80 is a distance of 50 parsecs away and lies is in the constellation of Aquila, with coordinates of right ascension 20:12:40 and declination −02:08:38. The stars in the plot have magnitudes between zero and six. With a magnitude of 11.8, WASP-80 is much fainter than these stars. You would need a telescope to see it.

WASP-80b has been observed with many of the world’s largest telescopes, including the Gran Telescopio Canarias (left), and ESO’s Very Large Telescope in Chile. The observations were trying to detect features in the atmosphere of the planet.

Amaury Triaud

The discovery of WASP-80b was announced in 2013 in a paper led by Amaury Triaud.

For further information see: http://exoplanet.eu/catalog/wasp-80_b/