Fil:Kepler-452b and Earth Size.jpg

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English: This artist's concept compares Earth (left) to the new planet, called Kepler-452b, which is about 60 percent larger in diameter.
中文:克卜勒452b的假想图与地球大小的比较,前者直径约为地球大小的1.6倍。

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FILE DESCRIPTION (updated 3 December 2015):

July 23, 2015

Earth's Bigger, Older Cousin -- Artistic Concept - Kepler-452b and Earth

Scientists using data from NASA's Kepler mission have confirmed the first near-Earth-size planet orbiting in the habitable zone of a sun-like star. The habitable zone is the region around a star where temperatures are just right for water to exist in its liquid form.

The artistic concept compares Earth (left) to the new planet, called Kepler-452b, which is about 50 percent larger. The illustration represents one possible appearance for Kepler-452b -- scientists do not know whether the planet has oceans and continents like Earth.

Both planets orbit a G2-type star of about the same temperature; however, the star hosting Kepler-452b is 6 billion years old, 1.5 billion years older than our sun. As stars age, they become larger, hotter and brighter, as represented in the illustration. Kepler-452b's star appears a bit larger and brighter.

Image credit: NASA/Ames/JPL-Caltech/T. Pyle

Last Updated: Dec. 3, 2015

Editor: Michele Johnson

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NASA PIA19825

Forfatter NASA/Ames/JPL-Caltech
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nuværende23. jul. 2015, 23:44Miniature af versionen fra 23. jul. 2015, 23:444.534 × 2.550 (2,58 MB)DreamLiner{{Information |Description ={{en|1=This artist's concept compares Earth (left) to the new planet, called Kepler-452b, which is about 60 percent larger in diameter.}} {{zh|1=克卜勒452b的假想图与地球大小的比较,前者约为地球大小...

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