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10 Hour shot of M27 in Ha
Hi Mike,
Check out this image of M27 in Ha. Ten hour exposure ... very impressive. Here's the details: "I shot this image of M27 over the past few nights through Ha, [OIII] and a Blue filter. I had 5.75 hours of Ha, 3.25 hours of [OIII] and one hour of Blue. The emission line exposures were 15 minutes and were exposed through Custom Scientific 3nm FWHM emission line filters. The camera is a Finger Lakes IMG1024S "Dream Machine" which uses a Tektronix TK1024 sensor. An SBIG AO7 was used along with an SBIG ST7E and an RCOS Optical Systems Dichroic Beam Splitter to guide and AO-correct the FLI camera. The imaging scope is a Celestron C14 operating at f./11 (3910mm Focal Length) mounted on an Astro-Physics AP1200GTO mount." http://www.rdcrisp.darkhorizons.org/...hao3b_page.htm Tris |
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