Puffed-up Atmosphere of a Star-hugging Gas Giant Planet (artist's impression)

This artist's illustration shows an extrasolar planet orbiting very close to its host star. The planet designated HD 209458b, is about the size of Jupiter. Unlike Jupiter, the planet is so hot that its atmosphere is "puffed up." Starlight is heating the planet's atmosphere, causing hot gas to escape into space, like steam rising from a boiler.


NASA, ESA, and G. Bacon (STScI)

About the Image

NASA press release
Release date:31 January 2007, 19:00
Size:4000 x 3000 px

About the Object

Name:HD 209458b
Type:Milky Way : Planet : Type : Gas Giant
Milky Way : Star : Circumstellar Material : Planetary System
Distance:150 light years

Image Formats

Large JPEG
760.2 KB
Screensize JPEG
90.5 KB


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