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US-NEW PLANET-ILLUSTRATION
This artist-s concept released by NASA/JPL represents the newly discovered Neptune-sized extrasolar planet circling the star Gliese 436. Gliese 436 is a type of low-mass star called an M dwarf, about four-tenths the size of our Sun. It appears reddish because it is cooler than a typical Sun-like star. The new planet is only the second to be found orbiting an M dwarf star, and is one of the smallest extrasolar planets detected to date. It circles Gliese 436 every 2.6 days at a small fraction of the distance between the Sun and Earth, or 4.1 million kilometers (2.6 million miles). AFP/NASA/JPL
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Detalii fotografie |
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WASHINGTON UNITED STATES, 31 aug |
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AFP / Mediafax Foto |
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31 August 2004 |
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2048 x 1536 (664.84 KB) |
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