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User / Cyrus II / Sets / Explored
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Tags:   Andromeda Galaxy M31 NGC 224 Astrometrydotnet:version=14400 Astrometrydotnet:id=alpha-201009-16279725 Astrometrydotnet:status=solved night bakgrundsbild

N 34 B 5.3K C 34 E Aug 27, 2010 F Sep 3, 2010
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Tags:   moon astrophotography philips SPC900NC high resolution

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An approximately 3-hour exposure of the Andromeda Galaxy. Exposure started a little after 2am when the galaxy appeared above my neighbor's roof and ended at around 5 when the sun came up.
Sky fog limited the subs to no longer than 3 min and stacking was done with DSS.
This was supposed to be part of a project with more subs however before I go any further I have to figure out what causes the lines that run across the image. What I don't get is that If it's some sort of noise then it should be random and not forming those ray-like patterns. I've already ruled out the lens and the camera as the source of the rays as the rays showed up even when I tried another scope and they do not appear in the darks. I think they might be rays of light from my neighbor's security light but I'm not sure. Have to try a longer dew-shield and see if it makes a difference. So for now, not knowing what causes them, I'm gonna call them cosmic rays :)
I'm posting this although it still needs a lot of work to look decent to see if anyone else got these weird lines and could let me know how to fix/prevent them. All comments are appreciated :)

Tags:   Andromeda Galaxy astrophotography noise Messier M31 NGC 224 Astrometrydotnet:version=14400 Astrometrydotnet:id=alpha-201008-37975142 Astrometrydotnet:status=solved

N 7 B 334 C 21 E Jun 6, 2009 F Jun 6, 2009
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Tags:   flower plant nature macro Long Beach California Canon PowerShot A620 CA USA blomma blommor Kalifornien

N 6 B 451 C 21 E Jun 25, 2011 F Jun 27, 2011
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Tags:   flower macro close up 16:9 background Canon PowerShot S95 widescreen bakgrundsbild blomma blommor


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