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| | Title: M57 By: Greg Beeke Telescope: Vixen VC200L f/18 Filters: R,G,B, 6nm Camera: Yankee Robotics Trifid 2 6303 Exposure: L=10x250s binned 1x1, RGB=5x250s binned 2x2 Notes: Vivitar 2x converter used to double focal ratio whilst maintaining a flat field | M57 2007 07 09 LRGB |
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