Image:M57 The Ring Nebula.JPG
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[edit] Summary
NASA image of M57, the Ring Nebula, taken from English Wikipedia.
Image Credit: NASA and The Hubble Heritage Team (STScI/AURA) [1]
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 color 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 color 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/
[edit] Source
[edit] Licensing
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This file is in the public domain because it was created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (NASA copyright policy page or JPL Image Use Policy).
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