The Saturn Nebula (also known as NGC 7009 or Caldwell 55) is a planetary nebula located in the constellation Aquarius.  It was discovered by William Herschel on September 7, 1782.

The Saturn Nebula is a complex planetary nebula and contains many morphological and kinematic sub-systems in three dimensions. It includes a halo, jet-like streams, multiple shells, ansae ("handles"), and small-scale filaments and knots. The ansae are expanding non-radially from the central star.

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

 

ABOUT THE IMAGE

DATE/TIME:  The evening and early morning of July 27th and 28th, 2011.

CAMERA:  Canon XSI, 450D modified

TELESCOPE:  Orion 100ED @ F/18

MOUNT:  Celestron CG-5GT.

ISO SETTING:  800

EXPOSURES:  32

EXPOSURE LENGTH:  300sec.

TOTAL EXPOSURE LENGTH:  2hrs 40min.

SUBTRACTIONS: 10 dark frames and 10 bias frames.

CAPTURE: MaximDL

STACKING/PRE-PROCESSING: Deep Sky Stacker

PROCESSING: Photoshop CS3

 

 

 

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