Blue Alien Planet Explained: Inside Hubble's Exoplanet Color Discovery (Infographic)

Infographic: Facts about the hot blue gas giant planet HD 189733b.

Light from the planet HD 189733b was captured by the Hubble Space Telescope and analyzed. Astronomers say that the giant planet has a deep-blue atmosphere, but conditions are in no way Earth-like.

Full Story: Strange Blue World: Alien Planet's True Color Revealed, a First

Facts About Planet HD 189733b:

Type: "hot Jupiter" gas giant

Distance from Earth: 63 light-years, in the constellation Vulpecula ("The Fox")

Day/Year: 2.2 Earth days (planet is tidally locked and one side always faces the parent star)

Temperature range: 1,800 degrees Fahrenheit (1,000 degrees Celsius) on the day side, 1,200 degrees F (650 degrees C) on the night side

Wind speed: 4,350 mph (7,000 km/hr)

Conditions: glass particles in atmosphere create blue color.

In 2007, astronomers created a heat map of the surface of HD 189733b showing the hot spot on the side permanently facing the star. This was the first surface map made of a planet orbiting another star.

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