Antares is a red giant star located approximately 550 light-years from Earth in the constellation Scorpius.  It is one of four stars known as the 'Royal stars of Persia' and is often referred to as 'the heart of the scorpion.'  Antares is also the 11th brightest star in the northern hemisphere.

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

In very close proximity to Antares there are two globular clusters, Messier 4 and NGC 6144.

 

ABOUT THE IMAGE

DATE/TIME:  The evening of June 22nd, 2014.

CAMERA:  Canon XSI, 450Da

TELESCOPE:  Orion 100mm ED refractor @ F/7.65

ISO SETTING:  800

EXPOSURES:  28

EXPOSURE LENGTH:  300sec.

TOTAL EXPOSURE LENGTH:  2hrs, 20min.

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

CAPTURE SOFTWARE:  MaximDL

STACKING SOFTWARE:  Deep Sky Stacker

PROCESSING:  Photoshop CS3

 

 

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