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Astro-photography (open thread)
MARRIEDGUY9 reacted to jerryy for a topic
Kind Of Blue... On page two of this thread, there is a posting of Jabbah, the star in Blue Horsehead Nebula (seen in the posting above) that gives it the blueish color. Closer view; IC 4592, Blue Horsehead Nebula (upside down and reversed from the posting above). This is the equivalent of 25 minutes, 15 seconds of exposure.1 point -
Astro-photography (open thread)
MARRIEDGUY9 reacted to jerryy for a topic
Summer Color... In winter, Orion puts on wonderful color displays. Its nebulae make it well worth freezing your batteries off to get the beautiful images. But, …, it is not the only show in town and other winter season nebulae demand their share of your viewing time. What about summer? Not to worry, there is plenty of sky color as well. Scorpius leads the way starting in late Spring: Part one of two.1 point -
Astro-photography (open thread)
MARRIEDGUY9 reacted to jerryy for a topic
In between comas... This is a region of space in between Coma Cluster and Coma Berenices. On the left is the Coma Cluster. A lot of times 'cluster' is used to name a grouping of stars, but the Coma Cluster is a grouping of galaxies. On the right is the Coma Berenices, an asterism. This one is a tale out of Egypt. Supposedly, someone bargained for their husband's safe return from a war. He came back, so she whacked her hair off and gave up the golden locks. They were placed in the stars, an eternal symbol, known to those that tell the tale. This is the equivalent of some few seconds less than 44 minutes of exposure. https://science.nasa.gov/missions/hubble/nasa-hubbles-sweeping-view-of-the-coma-cluster-of-galaxies/ https://www.underthenightsky.com/constellations/coma-berenices/ Some of the notable sights in this region include: The Needle Galaxy, NGC 4565: https://apod.nasa.gov/apod/ap240606.html The One Armed Spiral, NGC 4725: https://apod.nasa.gov/apod/ap150416.html An Intermediate spiral, NGC 4559: https://en.wikipedia.org/wiki/NGC_45591 point -
Astro-photography (open thread)
MARRIEDGUY9 reacted to jerryy for a topic
A Rose by another name ... is a Screaming Skull! NGC 7789, a star cluster located in the Cassiopeia Constellation, is called Caroline's Rose Cluster in honor of astronomer Caroline Herschel who discovered it in 1783. It also goes by the name The Screaming Skull Cluster. I must lack the cultural background or imagination, I have viewed this cluster through different telescopes at differing times of the season, but I just do not imagine a skull, much less a screaming one. Oh well. This is the equivalent of 84 minutes, 40 seconds of exposure. It also goes by the nicknames Ghost Cluster, Star Mist Cluster, Herschel's Spiral Cluster and Crab Cluster, maybe star mist might come close as a name... https://apod.nasa.gov/apod/ap171115.html https://skyandtelescope.org/online-gallery/ngc-7789-an-open-cluster-in-cassiopeia/1 point -
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