Astronomy Picture of the Day ·

Water Claimed in Evaporating Planet HD 209458b

The Astronomy Picture of the Day for April 17, 2007 is “Water Claimed in Evaporating Planet HD 209458b,” an image. It is credited to Illustration Credit: European Space Agency , Alfred Vidal-Madjar ( Institut d’Astrophysique de Paris , CNRS ), NASA. The original explanation runs about 146 words.

Water Claimed in Evaporating Planet HD 209458b
Credit: Illustration Credit: European Space Agency , Alfred Vidal-Madjar ( Institut d’Astrophysique de Paris , CNRS ), NASA Shown from science.nasa.gov. Not hosted by OpenOrbit.

From the explanation

“Planet HD 209458b is evaporating. It is so close to its parent star that its heated atmosphere is simply expanding away into space.”

— APOD editors, April 17, 2007

Read the full explanation on science.nasa.gov

At a glance

Date
April 17, 2007
Type
Image
Credit
Credit: Illustration Credit: European Space Agency , Alfred Vidal-Madjar ( Institut d’Astrophysique de Paris , CNRS ), NASA
Copyright
No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length
About 146 words

All of April 2007 → · 2007 by month → · Full archive since 1995 →

Topics in this entry

Jupiter

Topics are matched from words in the title and explanation.

On this day: April 17 in other years

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Source

Copy taken Oct 28, 2026, 2:39 AM EDT. The image and explanation belong to their creators. OpenOrbit is not affiliated with or endorsed by NASA.