Sharpless 2-101 in Halpha from AP180EDT f/9 and FLI Microline ML4022 and Custom Scientific 3nm Halpha filter

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Taken on August 15, 2009 from my ranch in the California Gold Country

AP180EDT f/9

FLI Microline ML4022 imaging camera operated at -25C

AP 1200 GTO mount

AP80/900mm guide scope with adjustable rings

SBIG ST7E guide camera

Custom Scientific 3nm FWHM AR-coated 50mm round Halpha filter 

6 x 15 minutes binned 2x2

1.5 hours total exposure 

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