Event Horizon - Astronomical and Terrestrial Images

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Most viewed - Deep Sky
NGC1499_20220828_RRBG2.jpg
NGC1499 - The California Nebula, narrowband version 572 viewsA more conventional narrowband rendition of the California Nebula, mapping H-alpha to gold and O-III to blue
M74-20161102.jpg
M74 - Spiral galaxy in Pisces570 viewsFace-on spiral galaxy about 32 million light-years from Earth in the constellation Pisces.
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NGC6960 - The Western Veil Nebula569 viewsPart of the Cygnus Loop, a supernova remnant in Cygnus. Also known as the Witches’ Broom.
M23-20230523-V1.jpg
M23 - Open Cluster in Sagittarius569 viewsIn front of an extensive gas and dust network. Around 300 million years old and 2050 light-years away.
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Sharpless2-1568 viewsCombination of a diffuse HII emission nebula and reflection nebula in the constellation of Scorpius with Pi Scorpii at its center.
NGC2359_20250105_RASA11_ASI2600_OLQ3c.JPG
NGC2359 - Thor's Helmet567 viewsAn emission nebula in the constellation Canis Major. About 12,000 light-years distant and 30 light-years in size. Associated with the Wolf-Rayet star WR7.
M44_20250220_RASA11_ASI2600MC_v2.JPG
M44 - The Beehive Cluster566 viewsOpen cluster in the constellation Cancer. Around 600 light-years distant and 600 million years old.
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NGC 7023, the Iris Nebula565 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.
M12_20240509_RASA11_ASI2600_LPQ3.JPG
Messier 12, Globular Cluster in Ophiuchus565 viewsAbout 16,400 light years from Earth; diameter about 75 light-years. It is loosely packed and has an unusually small number of low-mass stars.
NGC4631_20220424_LRGB3.jpg
NGC 4631, The Whale Galaxy564 viewsA barred spiral galaxy in the constellation Canes Venatici. Contains a central starburst - a region of intense star formation. The "calf" - the nearby dwarf galaxy - is NGC 4527.
NGC2237-20210205-LRGB-i3.jpg
NGC2237 - The Rosette Nebula563 viewsEmission Nebula / HII region in Monoceros, with open cluster NGC 2244 in center of nebula.
M14_20250605_RGB_FLT132_2600MM_V1.JPG
M14 - Globular cluster in Ophiuchus563 viewsAlso known as NGC 6402. 30,000 light-years distant. Contains several hundred thousand stars.
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