Nebulae - Event Horizon

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Most viewed - Nebulae

NGC 7023 - the Iris Nebula in Cepheus495 viewsA bright reflection nebula in the constellation Cepheus, about 1300 light-years away. Actually NGC 7023 is the star cluster inside the nebula, which is properly designated LBN 487.

IC2177 - The Parrot Nebula495 viewsUsually known as the Seagull Nebula, but to me it looks more like a parrot. An HII region lying along the border between Canis Major and Monoceros.

M20 - The Trifid Nebula493 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.

IC405 - The Flaming Star Nebula in Auriga493 viewsNarrowband view of an emission and reflection nebula in the constellation Auriga north of the celestial equator, surrounding the bluish, irregular variable star AE Aurigae. About 1500 light-years away.

M17, the Swan Nebula (nasrrowband)493 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.

Sharpless2-313 - Planetary Nebula in Hydra493 viewsAbout 400 light-years away. Also known as Abell 35 or PN G303.6+40.0.

IC1805 - The Heart Nebula, narrowband version492 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.

Sharpless 2-82 - The Little Cocoon nebula in Sagitta492 viewsAlso known as the Little Trifid Nebula, LBN 129 and DG 159. Ionized by the B0.5V star HD 231616.

M8 - the Lagoon Nebula (narrowband)492 viewsA giant emission nebula in Sagittarius. Distance 4100 light-years. 110 x 50 light-years in size. Part of a larger star cloud.

IC2118, the Witch Hunt Nebula491 viewsFaint reflection nebula in Eridanus, usually known as the Witch Head Nebula, but it doesn't look much like a witch's head in this view, shot with an IDAS NBZ nebula enhancement filter, so maybe this version is best titled the "Witch Hunt Nebula." About 900 light-years away; illuminated by the nearby supergiant blue-white star Rigel in Orion.

NGC281 - PacMan Nebula, narrowband version490 viewsA narrowband version of the PacMan, obtained with a one-shot color CMOS camera and an IDAS NBZ nebula enhancement filter, with H-alpha mapped to red and O-III to blue.

NGC1499 - The California Nebula, narrowband version 485 viewsA more conventional narrowband rendition of the California Nebula, mapping H-alpha to gold and O-III to blue

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Event Horizon - Astronomical and Terrestrial Images