RickJ
2008-Sep-05, 03:59 AM
This galaxy is 200 million light years away so needs a night of good seeing to get much. Unfortunately, normally I have lousy seeing. In three years of trying seeing just hasn't allow it. One night for an hour seeing was far better than normal. Unfortunately after an hour it went bad rapidly. When imaging with 1x1 binning I need 4 times the exposure I use at 2x2 for similar noise levels. So this is noisier than I'd like but after waiting two months for seeing to improve I gave up and went with what I had.
Most shots of this galaxy show only the spiral arms with a hint of the disk they are embedded in. I was happy to see that even with my limited exposure time I was able to pick up some detail in this disk including star clouds near the rim of the disk. This must be a spectacular sight for any viewer located only 10 or 20 million light years from it rather than the 200 million light years we view it from.
Oh yes, M57 seems to have crept into the image as well. The lack of exposure time really hurt it's outer shells.
14" LX200R @ f/10, L=3x20' binned 1x1, RGB=3x10' binned 2x2, STL-11000XM, Paramount ME
Original image was 4008x2672 pixels. I only processed the center 2004x1336. That can be seen at:
http://www.spacebanter.com/attachment.php?attachmentid=2165&stc=1
Many more background galaxies are in it than this cropped version. Both are at 0.5" per pixel.
Rick
Most shots of this galaxy show only the spiral arms with a hint of the disk they are embedded in. I was happy to see that even with my limited exposure time I was able to pick up some detail in this disk including star clouds near the rim of the disk. This must be a spectacular sight for any viewer located only 10 or 20 million light years from it rather than the 200 million light years we view it from.
Oh yes, M57 seems to have crept into the image as well. The lack of exposure time really hurt it's outer shells.
14" LX200R @ f/10, L=3x20' binned 1x1, RGB=3x10' binned 2x2, STL-11000XM, Paramount ME
Original image was 4008x2672 pixels. I only processed the center 2004x1336. That can be seen at:
http://www.spacebanter.com/attachment.php?attachmentid=2165&stc=1
Many more background galaxies are in it than this cropped version. Both are at 0.5" per pixel.
Rick