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domingo, 23 de octubre de 2016

NASA : Hubble Spins a Web Into a Giant Red Spider Nebula .- Telescopio Espacial Hubble, teje una red de una gigantesca nebulosa llamada Araña Roja

http://www.nasa.gov/image-feature/goddard/2016/hubble-spins-a-web-into-a-giant-red-spider-nebula

two-lobed nebula some 3,000 light-years away in the constellation of Sagittarius
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Huge waves are sculpted in this two-lobed nebula called the Red Spider Nebula, located some 3,000 light-years away in the constellation of Sagittarius. This warm planetary nebula harbors one of the hottest stars known and its powerful stellar winds generate waves 100 billion kilometers (62.4 billion miles) high. The waves are caused by supersonic shocks, formed when the local gas is compressed and heated in front of the rapidly expanding lobes. The atoms caught in the shock emit the spectacular radiation seen in this image.
Text credit: ESA (European Space Agency)
Image credit: ESA/Garrelt Mellema (Leiden University, the Netherlands)
Last Updated: Oct. 21, 2016
Editor: Rob Garner
NASA
Guillermo Gonzalo Sánchez Achutegui
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