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Helix nebula
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The Helix Nebula (NGC 7293) is a challenging stargazing target for amateur astronomers. It is one of the closest planetary nebulas -- a type of nebula formed from gas ejected by a dying sunlike star.
A new portrait of the Helix Nebula, created by the infrared Spitzer Space Telescope, has be...
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PN G75.5+1.7
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It looks like a soap bubble or perhaps even a camera fault, but the image at right is a newly discovered planetary nebula. Planetary nebulae, which got their name after being misidentified by early astronomers, are formed when an ageing star weighing up to eight times the mass of the sun ejects its out...
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Planetary nebula SuWt 2
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Call it the case of the missing dwarf. A team of stellar astronomers is engaged in an interstellar CSI (crime scene investigation). They have two suspects, traces of assault and battery, but no corpse. The southern planetary nebula SuWt 2 is the scene of the crime, some 6,500 light-years from Earth i...
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New candidate Planetary Nebulae
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Title: New candidate Planetary Nebulae in the IPHAS survey: the case of PNe with ISM interaction Authors: Laurence Sabin, Albert A. Zijlstra, Christopher Wareing, Romano L.M. Corradi, Antonio Mampaso, Kerttu Viironen, Nicholas J. Wright, Quentin A. Parker We present the results of the search f...
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Planetary nebulae
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The colourful, intricate shapes in these NASA Hubble Space Telescope images reveal how the glowing gas ejected by dying Sun-like stars evolves dramatically over time. These gaseous clouds, called planetary nebulae, are created when stars in the last stages of life cast off their outer layers of m...
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