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  2. Planetary nebula - Wikipedia

    en.wikipedia.org/wiki/Planetary_nebula

    NGC 6326, a planetary nebula with glowing wisps of outpouring gas that are lit up by a binary [3] central star. A planetary nebula is a type of emission nebula consisting of an expanding, glowing shell of ionized gas ejected from red giant stars late in their lives. [4] The term "planetary nebula" is a misnomer because they are unrelated to ...

  3. NGC 2818 - Wikipedia

    en.wikipedia.org/wiki/NGC_2818

    NGC 2818 is a planetary nebula located in the southern constellation Pyxis (The Compass). It consists largely of glowing gases from the star's outer layers ejected during the final stages of its life when it had run out of the fuel necessary to sustain its core fusion processes.

  4. Stunning new images reveal Ring Nebula in unprecedented detail

    www.aol.com/colorful-ring-nebula-shines-webb...

    Planetary nebulae, which have nothing to do with planets despite the name, usually have a rounded structure and were so named because they initially resembled the disks from which planets form ...

  5. NGC 6751 - Wikipedia

    en.wikipedia.org/wiki/NGC_6751

    NGC 6751, also known as the Glowing Eye Nebula, [2] is a planetary nebula in the constellation Aquila. It is estimated to be about 6,500 light-years (2.0 kilo parsecs ) away. [ 2 ]

  6. Emission nebula - Wikipedia

    en.wikipedia.org/wiki/Emission_nebula

    Planetary nebulae, represented here by the Ring Nebula, are examples of emission nebulae. An emission nebula is a nebula formed of ionized gases that emit light of various wavelengths. The most common source of ionization is high-energy ultraviolet photons emitted from a nearby hot star .

  7. A rare ‘cosmic butterfly’ unfurls its wings in this ... - AOL

    www.aol.com/lifestyle/rare-cosmic-butterfly...

    This highly detailed image of the fantastic NGC 2899 planetary nebula was captured using the FORS instrument on ESO’s Very Large Telescope in northern Chile. Over 3,000 light years away, a ...

  8. NGC 6826 - Wikipedia

    en.wikipedia.org/wiki/NGC_6826

    NGC 6826 (also known as Caldwell 15) is a planetary nebula located in the constellation Cygnus. It is commonly referred to as the "Blinking Planetary", although many other nebulae exhibit such "blinking". When viewed through a small telescope, the brightness of the central star overwhelms the eye when viewed directly, obscuring the surrounding ...

  9. NGC 6818 - Wikipedia

    en.wikipedia.org/wiki/NGC_6818

    The Little Gem Nebula or NGC 6818 is a planetary nebula located in the constellation of Sagittarius. It has magnitude 10 and oval diameter of 15 to 22 arcseconds with a 15th magnitude central star. It has magnitude 10 and oval diameter of 15 to 22 arcseconds with a 15th magnitude central star.