The Helix Nebula (NGC 7293)

Posted by Timthelder
on Monday, August 29, 2011

by Tim Lockhart

From Bowling Green KY

ABOUT THE IMAGE

DATE/TIME:  The evening and early mornings of August 24th, 26th and 27th, 2011.

CAMERA:  Canon XSI, 450D modified

TELESCOPE:  Orion 100ED @ F/9

MOUNT:  Celestron CG-5GT.

ISO SETTING:  800

EXPOSURES:  38

EXPOSURE LENGTH:  600sec.

TOTAL EXPOSURE LENGTH:  6hrs 20min.

SUBTRACTIONS: 30 dark frames, 10 bias frames and 20 flat frames.

CAPTURE: MaximDL

STACKING/PRE-PROCESSING: Deep Sky Stacker

PROCESSING: Photoshop CS3

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