51 Pegasi b, officially named Dimidium, is an extrasolar planet approximately 50 light-years away in the Pegasus constellation. Dimidium was the first exoplanet to be discovered orbiting a main-sequen
An artist's impression of 51 Pegasi b (left) and its star (right)
Profile of planet 51 Pegasi b by NASA
HD 189733 b is an exoplanet in the constellation of Vulpecula approximately 64.5 light-years away from the Solar System. Astronomers in France discovered the planet orbiting the star HD 189733 on Octo
The infrared spectrum of HD 189733 b
An artist's conception of HD 189733 b following the 2013 confirmation of the planet's blue color by the Hubble Space Telescope. The appearance of HD 189733 b beyond the blue color is unknown.
An artist's impression of HD 189733 b showing rapid evaporation of the atmosphere
Comparison of "hot Jupiter" exoplanets (artist concept). From top left to lower right: WASP-12b, WASP-6b, WASP-31b, WASP-39b, HD 189733 b, HAT-P-12b, WASP-17b, WASP-19b, HAT-P-1b and HD 209458 b.