NGC 6934 is a small magnitude 8.9 globular cluster located in the constellation Delphinus at a distance of about 50,000 light-years.  NGC 6934 was discovered by William Herschel on Sept. 24th 1785, and was cataloged as H I. 103. It has an apparent size of 0°5'54" and is approximately 15 billion years old.

 

ABOUT THE IMAGE

DATE/TIME:  Evening of September 24th, 2014.

CAMERA:  Canon XSI, 450Da

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

ISO SETTING:  800

EXPOSURES:  21

EXPOSURE LENGTH:  300sec.

TOTAL EXPOSURE LENGTH:  1hr 45min.

SUBTRACTIONS:  16 dark frames, 20 flat frames and 16 dark-flat frames.

CAPTURE: MaximDL

STACKING/PRE-PROCESSING: Deep Sky Stacker

PROCESSING: Photoshop CS3