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Most viewed - Astronomical Images |
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IC4592, the Blue Horsehead Nebula736 viewsReflection Nebula in Scorpius, lit up by Nu Scorpii. About 400 light-years away.
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NGC 6520 and Barnard 86735 viewsNGC 6520 is an open cluster in the constellation Sagittarius, consisting of about 25 stars of magnitude 9-12. At its western edge (to the right in this image) lies the dark nebula Barnard 86 (B86).
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Totality minus 7 minutes733 viewsC2 - 7 min, 18 sec
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NGC 6888 - The Crescent Nebula733 viewsAn emission nebula in the constellation Cygnus, about 5000 light-years away from Earth; formed by the fast stellar wind from the Wolf-Rayet star WR 136 colliding with and energizing slower-moving matter ejected by the star when it became a red giant around 250,000 to 400,000 years ago.
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M31 - The Andromeda Galaxy733 viewsA wide-field view of the Andromeda Galaxy, 2.5 million light years away and 152,000 light years in diameter. Satellite galaxies M32 (above right of center, on rim of M31) and M110 (bottom center) also appear in the frame. Red swath at left was caused by a reflection of the red power-on light on the ZWO ASI2600MC camera, which sits in front of the telescope.
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Pre-Totality 6732 viewsAnd Baghdad darken and the bridge
Across the silent river gone
And through Arabia the edge
Of evening widen and steal on
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IC4604, The Rho Ophiuchi Nebula731 viewsPart of the Rho Ophiuchi complex, a gaggle of interstellar clouds centered 1 degree south of the star Rho Ophiuchi. Estimated distance from Earth is 460 light-years.
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M11 - The Wild Duck Cluster730 viewsOne of the richest, most compact and most massive open clusters known; estimates range from 3,700 to 11,000 solar masses. Radius 95 light-years. 6,120 light-years away, in the constellation Scutum. Supposedly the cluster resembles a flying flock of ducks, although as far as I can tell it could just as well be geese, crows or magpies.
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M45 - The Pleiades729 viewsOpen star cluster in the constellation Taurus. Nearest Messier object to Earth (444 light-years).
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Sunspots726 viewsThe Sun in this early-pre-totality eyepiece-projection shot is too big to fit into the frame, but the sunspots do show up well.
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Medusa Nebula (Sharpless 2-274)726 viewsPlanetary Nebula in Gemini. Discovered in 1955, first thought to be a supernova remnant, but Soviet astronomers in 1971 determined it to be a planetary nebula.
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NGC 253 - The Silver Dollar Galaxy726 viewsSpiral galaxy in the constellation Sculptor.
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