Stellar_flare_hits_HD_189733_b_(artist's_impression).jpg
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Summary
Description Stellar flare hits HD 189733 b (artist's impression).jpg |
English:
This artist’s impression shows exoplanet HD 189733b, as it passes in front of its parent star, called HD 189733A. Hubble’s instruments observed the system in 2010, and in 2011 following a large flare from the star (depicted in the image). Following the flare, Hubble observed the planet’s atmosphere evaporating at a rate of over 1000 tonnes per second.
In this picture, the surface of the star, which is around 80% the mass of the Sun, is based on observations of the Sun from the Solar Dynamics Observatory.
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Date | |
Source | http://www.spacetelescope.org/images/heic1209a/ |
Author | NASA, ESA, L. Calçada |
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