Nebulae - Event Horizon

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Most viewed - Nebulae

NGC 7023, the Iris Nebula655 viewsReflection nebula in Cepheus. Actually the nebula is LBN 487, and NGC 7023 is a star cluster within the nebula. 1300 light-years away and 6 across.

IC1848 - The Soul Nebula, narrowband version651 viewsNarrowband rendition of the Soul Nebula, captured using an IDAS NBZ nebula enhancement filter, with H-alpha emissions in red and O-III emissions in blue.

M8, The Lagoon Nebula in Sagittarius649 viewsAn emission nebula lying 4000-6000 years from Earth. Also designated NGC 6523. An HII star-forming region. Contains the open cluster NGC 6530.

M17, the Swan Nebula (nasrrowband)646 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.

NGC 7635 - The Bubble Nebula643 viewsEmission nebula in the constellation Cassiopeia. The bubble is created by the stellar wind from a hot, young star.

IC5146 - The Cocoon Nebula643 viewsEmission/reflection nebula in Cygnus, surrounded by dark nebula Barnard 168 (B168) which also appears as a trail behind the Cocoon

M18 and M17 together641 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.

IC1318 - Gamma Cygni Nebula640 viewsA diffuse emission nebula surrounding Sadr (Gamma Cygni) at the center of the Northern Cross in the constellation Cygnus.

SH2-132, The Lion Nebula639 viewsEmission nebula in the constellation Cepheus, near the border with Lacerta; about 10,400 light-years away..

NGC 7822 - Star-forming region in Cepheus635 viewsIncludes the emission nebula Sharpless 171 and the star cluster Berkeley 59. Around 3000 light-years from Earth.

IC 1805 - The Heart Nebula in Cassiopeia628 viewsIC 1805, the Heart Nebula, lies 7,500 light-years away from Earth in the Perseus arm of the Milky Way. It is an emission nebula, drawing its radiance from Melotte 15, the cluster of bright stars in the center of this image.

M17 - The Swan Nebula626 viewsIn the constellation Sagittarius. Also known as the Omega or Horseshoe Nebula. A prolific star-forming region, lying 5000-6000 years from Earth.

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Event Horizon - Astronomical and Terrestrial Images