Thursday, April 30, 2015
This bumper sticker features a bestselling & unique mountain silhouette design that looks like the green mountains are snow tipped. The popular quote from Naturalist and Founder of the Sierra Club, John Muir 'The mountains are calling and I must go.' is underneath. The background color can easily be modified by pressing the 'Customize it' button. Show your love for the mountains on any vehicle!
Designed by Nature's Essence in Print. Image83b
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tagged with: star nurseries, star clusters, starfields, nebulae, heavens, helix nebula, hrbstslr helixneb, star galaxies, astronomy images, outer space pictures, eso, european southern observatory, vista
Galaxies, Stars and Nebulae series A fantastic colour-composite image of the Helix Nebula (NGC 7293). It was created from images obtained using the Wide Field Imager (WFI), an astronomical camera attached to the 2.2-metre Max-Planck Society/ESO telescope at the La Silla observatory in Chile.
The blue-green glow in the centre of the Helix comes from oxygen atoms shining under effects of the intense ultraviolet radiation of the 120 000 degree Celsius central star and the hot gas.
Further out from the star and beyond the ring of knots, the red colour from hydrogen and nitrogen is more prominent. A careful look at the central part of this object reveals not only the knots, but also many remote galaxies seen right through the thinly spread glowing gas.
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image code: helixneb
ESO/J. Emerson/VISTA www.eso.org
Reproduced under the Creative Commons Attribution 3.0 Unported license.
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