Nebulae - Event Horizon

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Most viewed - Nebulae

NGC1499 - The California Nebula, narrowband version669 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.

Sh2-119 - the Clamshell Nebula668 viewsLarge emission Nebula in Cygnus, located around the bright star 58 Cygni. The frame is only large enough to accommodate a small part of the left side of the clamshell.

Sharpless2-112668 viewsEmission nebula in Cygnus, energized by the star BD +45 3216 embedded within it.

The Horsehead Nebula in Orion667 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.

M20 - The Trifid Nebula666 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.

NGC281 - The Pac-Man Nebula662 viewsA bright emission nebula, part of an H II region in the constellation Cassiopeia; known as the Pac-Man Nebula because of its resemblance to the video game character that flits around ruthlessly and insatiably chomping up defenseless, pathetic little dots.

NGC2264 - Christmas Tree Cluster/Cone Nebula662 viewsBoth a cluster and a nebula, NGC2264 is located in the constellation Monoceros, 2,300 light-years from Earth.

Sh2-204 - Faint nebula in Camelopardalis662 viewsEmission nebula, about 12,500 light-years away

NGC 6543 - Cat's Eye Nebula660 viewsA structurally very complex planetary nebula about 3000 light-years from Earth in the constellation Draco. In large-telescope images it has the appearance of a cat's eye, but in my 5" refractor it appears simply as a bright blue star with a halo. The small spiral galaxy off to the left is probably NGC 6552.

NGC6334 - Cat's Paw Nebula660 viewsAn emission nebula and star-forming region in the constellation Scorpius; distance from Earth is about 5500 light-years. Also known as Gum 64 or the Bear Claw Nebula.

IC1805 - The Heart Nebula, narrowband version654 viewsNarrowband rendition of the Heart Nebula, using the IDAS NBZ nebula enhancement filter to capture the H-alpha and O-III emissions; Fish Head Nebula seen as extension of Heart at lower left.

Sh2-290 - Planetary Nebula in Cancer653 viewsAlso known as Abell 31 and PK 219+31.1. Ancient planetary nebula, about 2000 light-years away, one of the largest in the sky but very dim.

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Event Horizon - Astronomical and Terrestrial Images