NGC7023 from AP180EDT f/9 and FLI Proline PL39000C

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click to enlarge  (mild processing)

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taken on April 17, 2009 from my ranch in Mariposa County in California Gold Rush Country

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AP180EDT f/9 imaging scope used with AP 2.7" Field flattener

Finger Lakes CFW 4-5 filter wheel 

Finger Lakes Proline 39K color camera

Baader Planetarium 50 x 50 mm square IR blocking luminance filter

Robofocus

AP 80/900 mm guide scope

SBIG ST7ME guide camera

AP1200GTO mount

45 x 5 minutes data

3 hours 45 minutes total exposure

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