Nebulae - Event Horizon

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Most viewed - Nebulae

Sharpless 2-171, The Teddy Bear Nebula in Cepheus621 viewsAn emission nebula, part of a larger nebula designated NGC 7822, about 2900 light years away.

IC1396A - Elephant Trunk Nebula 607 viewsA narrowband (Hubble Palette) image of a dense cloud of gas and dust within a much larger region of ionized gas designated IC1396, illuminated and ionized by the massive bright star HD206267 at the upper right corner of the frame. I don't find that the shape of the nebula resembles an elephant's trunk, but rather, as Michelle Evans has suggested, a dragon named Verminthrax Pejorative from the movie Dragonslayer.

Sharpless 2-155 - The Cave Nebula572 viewsA narrowband (Hubble Palette) view of an emission nebula in Cepheus; part of an ionized HII region within a larger complex containing emission, reflection and dark nebulae. About 2400 light-years away, on the edge of the Cepheus molecular cloud.

NGC 6888 - The Crescent Nebula565 viewsAn emission nebula in the constellation Cygnus, about 5000 light-years away from Earth; formed by the fast stellar wind from the Wolf-Rayet star WR 136 colliding with and energizing slower-moving matter ejected by the star when it became a red giant around 250,000 to 400,000 years ago.

NGC 7822 - Star-forming region in Cepheus559 viewsIncludes the emission nebula Sharpless 171 and the star cluster Berkeley 59. Around 3000 light-years from Earth.

Sharpless2-27 - The Zeta Ophiuchi Nebula558 viewsLarge but very faint emission nebula centered on the star Zeta Ophiuchi. Difficult to image because of the brightness of the star relative to the faintness of the nebula..

M20 - The Trifid Nebula553 viewsA combination of an open cluster of stars, an emission nebula (the lower, red portion), a reflection nebula (the upper, blue portion) and a dark nebula (which accounts for the gaps dividing the nebula into lobes). About 5000 light-years away in the constellation Sagittarius.

M42 - The Great Nebula in Orion543 viewsA narrowband image of the Orion Nebula, captured with a one-shot color CMOS camera and an IDAS NBZ nebula enhancement filter.

IC417 and NGC1931 - The Spider and the Fly541 viewsEmission nebula in Auriga, 100 light-years across and 10,000 light-years from Earth. The Fly (NGC1931) is about 7,000 light-years away.

Sh2-106 - Snow Angel Nebula536 viewsEmission nebula and star forming region in Cygnus, about 2000 light-years from Earth.

IC4604, The Rho Ophiuchi Nebula532 viewsPart of the Rho Ophiuchi complex, a gaggle of interstellar clouds centered 1 degree south of the star Rho Ophiuchi. Estimated distance from Earth is 460 light-years.

NGC 7293 - The Helix Nebula in Aquarius529 viewsOne of the closest planetary nebulae, at only 650 light-years from Earth. Around 10,600 years old and 2.5 light-years in diameter. Sometimes known as the "Eye of God" or the "Eye of Sauron."

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