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Planetary nebula

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The Helix Nebula (NGC 7293 or also the eye of God): Planetary nebula in the constellation Aquarius with brightness of +6.30. The apparent diameter is specified with 16.0 'x 28.0'. Photo shown here has a diagonal field of view width (FOV) of slightly more than 1 °. The whole structure with all the fine nebulae around is much greater than the usually specified diameter. Picture was stacked from 200 shots h-Alpha & 135 shots RGB with a total exposure time of 37 hrs.

The Helix Nebula (NGC 7293 or also the eye of God): Planetary nebula in the constellation Aquarius with brightness of +6.30. The apparent diameter is specified with 16.0 'x 28.0'. Photo shown here has a diagonal field of view width (FOV) of slightly more than 1 °. The whole structure with all the fine nebulae around is much greater than the usually specified diameter. Picture was stacked from 200 shots h-Alpha & 135 shots RGB with a total exposure time of 37 hrs.

The Cat's Eye Nebula (NGC 6543)

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MyCn18 "Etched Hourglass" | Flickr - Judy Schmidt

This nebula is insanely popular. Probably because it's a giant fracking eyeball in space, staring at us. Ok, it's not actually an eyeball, but it sure looks like one. The oddly off center star completes the effect by looking like the specular reflection on a glistening eyeball. Speaking of that off center star, the fact that it's off center is very perplexing. This APOD from 1996 highlights this mystery. What I want to know is whether or not that central star is actually a foreground star…

This planetary nebula is called PK 329-02.2 and is located in the constellation of Norma in the southern sky.

This planetary nebula is called PK 329-02.2 and is located in the constellation of Norma in the southern sky. It is also sometimes referred to as Menzel 2, or Mz 2, named after the astronomer Donald Menzel who discovered the nebula in 1922. When stars that are around the mass of the Sun reach their final stages of life, they shed their outer layers into space, which appear as glowing clouds of gas called planetary nebulae. The ejection of mass in stellar burnout is irregular and not…

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The Helix nebula is located 650 light-years away in the constellation Aquarius. It is a typical example of a class of objects known as planetary nebulae, and is also known by the catalogue number NGC 7293.
Infrared Universe: Helix Nebula
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