Nebulae - Event Horizon

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Most viewed - Nebulae

NGC 2359 - Thor's Helmet624 viewsAn emission nebula in the constellation Canis Major; about 12,000 light-years away. Consists largely of interstellar gas swept up by the central star, and partly of material from the star itself, which is an extremely hot, massive Wolf-Rayet star in a short-lived pre-supernova stage.

M17, the Swan Nebula (nasrrowband)623 viewsAlso known as Omega. Checkmark, Lobster and Horseshoe Nebula. 5,000 to 6,000 light-years away and 15 light-years across. Prolific star-forming region.

Sh2-311 - Emission nebula in Puppis617 viewsSharpless 311 (Sh2-311, NGC 2467, Gum 9, LBN 1065 + 1067) is a bright nebula located approximately 20,500 light-years away in the constellation Puppis.

IC1318 - Gamma Cygni Nebula608 viewsA diffuse emission nebula surrounding Sadr (Gamma Cygni) at the center of the Northern Cross in the constellation Cygnus.

SH2-132, The Lion Nebula606 viewsEmission nebula in the constellation Cepheus, near the border with Lacerta; about 10,400 light-years away..

IC5146 - The Cocoon Nebula606 viewsEmission/reflection nebula in Cygnus, surrounded by dark nebula Barnard 168 (B168) which also appears as a trail behind the Cocoon

M18 and M17 together602 viewsTwo Messier objects - M18, a sparse open cluster, at left, 4230 light-years away; and M17, the Swan or Omega Nebula, at right, 5 to 6 thousand light-years distant, both in Sagittarius.

Sharpless 11 - The War and Peace Nebula in Scorpius600 viewsHII region in Scorpius. Also known as Gum 66 and NGC 6357; ionised by the Pismis 24 and AH03 J1725−34.4 star clusters.

M8, The Lagoon Nebula in Sagittarius599 viewsAn emission nebula lying 4000-6000 years from Earth. Also designated NGC 6523. An HII star-forming region. Contains the open cluster NGC 6530.

NGC 7822 - Star-forming region in Cepheus596 viewsIncludes the emission nebula Sharpless 171 and the star cluster Berkeley 59. Around 3000 light-years from Earth.

NGC 7635 - The Bubble Nebula594 viewsEmission nebula in the constellation Cassiopeia. The bubble is created by the stellar wind from a hot, young star.

IC4592 - Blue Horsehead Nebula 591 viewsReflection nebula in the constellation Scorpius, lit by the giant septuple star Jabbah (Nu Scorpii). This photo shows only part of the nebula, so the horsehead shape is not evident here.

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Event Horizon - Astronomical and Terrestrial Images