NGC 246 also known as "The Skull Nebula," is a planetary nebula located approximately 1,600 light-years from Earth in the constellation Cetus.

http://en.wikipedia.org/wiki/NGC_246

 

ABOUT THE IMAGE

DATE/TIME:  Taken on the evening of November 3rd, 2013.

CAMERA:  Canon XSI, 450Da

TELESCOPE:  Celestron C9.25" SCT @ F/10

ISO SETTING:  800

EXPOSURES:  15

EXPOSURE LENGTH:  500sec.

TOTAL EXPOSURE LENGTH:  2hrs, 5min.

SUBTRACTIONS: 16 dark frames, 40 flat frames and 16 dark-flat frames.

CAPTURE: MaximDL

STACKING/PRE-PROCESSING: Deep Sky Stacker

PROCESSING: Photoshop CS3

 

 

 

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