Nebulae - Event Horizon

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Most viewed - Nebulae

Sharpless2-180505 viewsDiffuse emission nebula in Cassiopeia, quite dim

M78 - Reflection Nebula in Orion504 viewsM78 - Reflection Nebula in the Orion B molecular cloud complex, 1,350 light-years from Earth.

M1 - The Crab Nebula, narrowband version503 viewsA Hubble palette rendition of the remnant of the supernova seen by Chinese astronomers in 1054 CE.

Gum 85/Sh2-54 - nebula in Serpens502 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 Orion501 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.

NGC281 - The Pac-Man Nebula501 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.

NGC1499 - The California Nebula, narrowband version499 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.

Sh2-290 - Planetary Nebula in Cancer498 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.

Sharpless2-13497 viewsEmission nebula in Scorpius.

IC 1848 - The Soul Nebula496 viewsAn emission nebula in Cassiopeia, eastern neighbor of the Heart Nebula, IC 1805. About 6,500 light-years away, it spans 100 light-years, and is too big at that distance to fit into my telescope's field of view, so only part of it is seen here.

NGC 2359 - Thor's Helmet496 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.

Sh2-204 - Faint nebula in Camelopardalis496 viewsEmission nebula, about 12,500 light-years away

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Event Horizon - Astronomical and Terrestrial Images