Nebulae - Event Horizon

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Most viewed - Nebulae

NGC 1977, The Running Man Nebula in Orion239 viewsA reflection nebula embedded in a bright HII region, Sh2-171, found in Orion's Sword near the Great Orion Nebula M42. Sh2-171 also includes two other nebulae and the star cluster NGC-1981.

IC4592, the Blue Horsehead Nebula239 viewsReflection Nebula in Scorpius, lit up by Nu Scorpii. About 400 light-years away.

M17, the Swan Nebula (nasrrowband)239 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.

M42 - The Great Nebula in Orion238 views1344 light-years away, 24 light-years across, this emission/reflection nebula is one of the brightest in the sky, as well as the closest region of massive star formation to Earth.

M18 and M17 together238 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.

IC417 and NGC1931 - The Spider and the Fly238 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.

M8 - the Lagoon Nebula (narrowband)238 viewsA giant emission nebula in Sagittarius. Distance 4100 light-years. 110 x 50 light-years in size. Part of a larger star cloud.

NGC1499 - The California Nebula, narrowband version237 viewsThis bizarre rendition of the California Nebula was the result of an unrepeatable experiment in mapping H-alpha and O-III to various channels in a mad orgy of improvisation.

Gum 85/Sh2-54 - nebula in Serpens237 viewsGum 85/Sh2-54 is a star forming region in Serpens Cauda, part of the Serpens OB2 Association, a large star forming region possibly associated with the open star cluster NGC6604 (not in view). Around 5000 light years away.

The Horsehead Nebula in Orion234 viewsThe Horsehead Nebula, Barnard 33, is a dark nebula, silhouetted against the bright emission nebula IC 434. The large blue object to the left of IC 434 is a reflection nebula, NGC 2023. They are all found near the star Alnitak, the easternmost star in Orion's belt, which is off the frame to the right, and are 1400 light-years from Earth.

M1 - The Crab Nebula, narrowband version234 viewsA Hubble palette rendition of the remnant of the supernova seen by Chinese astronomers in 1054 CE.

Sh2-106 - Snow Angel Nebula234 viewsEmission nebula and star forming region in Cygnus, about 2000 light-years from Earth.

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Event Horizon - Astronomical and Terrestrial Images