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ASTRO: 29 hours of High QE imaging of M27
I began this over the July 4th holiday and took my most recent data last
night, Aug 3 This is 12 hours of [SII], 10 hours of [OIII] and 7 hours of Halpha It was shot using the TK1024 powered FLI Dream Machine camera (1kx1k @24x24 micron pixels at about 85% QE) using 4.5nm Cust Sci emission line filters on the Stinger 450 classical cassegrain using a Lumicon Giant Easy Guider with focal reducer for a focal length of 3366mm (~f/7.1). You just can't beat those TK1024 chips and other such similar chips for going really deep. The combination of the high QE, the deep wells and the big pixels, it really makes for a fast camera that is just wonderful for deep emission line imaging with tight filters. I am intrigued by the sulfur channel data (red in this palette). I am seeing detail I've not seen previously in shallower exposures. I may take some more exposures, but am getting a bit tired of this object after shooting it for the past month. http://www.narrowbandimaging.com/m27...2hao3_page.htm |
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