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From last night
Close to the Great Bear (Ursa Major) and surrounded by the stars of the Hunting Dogs (Canes Venatici), this celestial nebula was discovered in 1781 by the metric French astronomer Pierre Mechain. Later, it was added to the catalog of his friend and colleague Charles Messier as M106. Modern deep telescopic views reveal it to be an island universe -- a spiral galaxy around 30 thousand light-years across located only about 21 million light-years beyond the stars of the Milky Way. Youthful blue star clusters and reddish stellar nurseries trace the striking spiral arms of M106. Seen so clearly in this beautiful image, the galaxy's bright core is also visible across the spectrum from radio to x-rays, making M106 a nearby example of the Seyfert class of active galaxies. The bright core of a Seyfert galaxy is believed to be powered by matter falling into a massive central black hole. |
Dave,
Fellow astronomer here- Can you detail your gear (maybe in your OP) Scope Details Camera Details Software details Thanks.....Fellow astronomer here, but old school....(film) thinking of moving to the digital age. |
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It varies which scope I use. This was AstroTech Ritchey Chreiten 12" F8 Mount Losmandy Titan Camera SBIG ST8300M LRGB filters CCD Soft for acquisition CCD Stack to combine images Photoshop CS5 for processing. 6 hours total exposure. I'm actually talking to a company in China to have them make some cameras for me. If you are interested in a sample version they will run about $700 for a 6 MP camera which is about half of current cost. I hope to have them make a 16 MP for about $4k which is way cheap. |
The roof for the new observatory is almost ready. One half is opening just fine now. Get the other half finished and tighten everything up and it's show time.
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com·pre·hend
verb /ˌkämpriˈhend/ comprehended, past participle; comprehended, past tense; comprehending, present participle; comprehends, 3rd person singular present Grasp mentally; understand - he couldn't comprehend her reasons for marrying Lovat - I simply couldn't comprehend what had happened Include, comprise, or encompass - a divine order comprehending all men |
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sometimes just sound it out, is what I do :thumb: hey dave, nice shot of m106. I was reading some deal a while back where we may have an extra sun appear for a bit this summer - do you know anything about it? btw- I've been up to the mauna kea observatory many times. it is the most vivid viewing area I've been to. simply amazing at 14000ft I felt as if I could reach out and touch the stars |
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The Pelican Nebula (also known as IC5070 and IC5067) is an H II region associated with the North America Nebula in the constellation Cygnus. The nebula resembles a pelican in shape, hence the name. The Pelican Nebula is a large area of emission nebula in the constellation Cygnus (the Swan), close to Deneb, and divided from its brighter, larger neighbor, the North America Nebula, by a molecular cloud filled with dark dust.
The Pelican is much studied because it has a particularly active mix of star formation and evolving gas clouds. The light from young energetic stars is slowly transforming cold gas to hot and causing an ionization front gradually to advance outward. Particularly dense filaments of cold gas are seen to still remain. Millions of years from now this nebula might no longer be known as the Pelican, as the balance and placement of stars and gas will leave something that appears completely different. This is just a close up picture of the back of the neck of the Pelican Nebula as its huge in the sky. |
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Did you take this picture, Dave? |
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Sky. What's above you?... |
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