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Summary
NASA image of M57, the Ring Nebula, taken from English Wikipedia.
Image Credit: NASA and The Hubble Heritage Team (STScI/AURA)
Object: Planetary nebula M57, the Ring Nebula, in Lyra constellation
Image info: The color image was assembled from three black-and-white photos taken through different colour filters with the Hubble telescope's Wide Field Planetary Camera 2
Details:
- Blue isolates emission from very hot helium, which is located primarily close to the hot central star.
- Green represents ionized oxygen, which is located farther from the star.
- Red shows ionized nitrogen, which is radiated from the coolest gas, located farthest from the star.
The gradations of colour illustrate how the gas glows because it is bathed in ultraviolet radiation from the remnant central star (hot white dwarf), whose surface temperature is a white-hot 120,000 degrees Celsius/
External Links
Source
Licensing
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This file is in the public domain because it was created by the European Space Agency and NASA. Hubble material is copyright-free and may be freely used as in the public domain without fee, on the condition that ESA and NASA is credited as the source of the material. The material was created for ESA by the Hubble European Space Agency Information Centre and for NASA by STScI under Contract NAS5-26555. or . |
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File history
Click on a date/time to view the file as it appeared at that time.
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Date/Time |
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02:06, 21 December 2006 |
1,215×1,241 (631 KB) |
Egg |
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14:49, 5 November 2005 |
1,024×768 (41 KB) |
Czar |
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File links
The following pages on Schools Wikipedia link to this image (list may be incomplete):
Categories: Hubble Space Telescope images