2017-02-27
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CDK20N at Moore Observatory
John Kielkopf

griz filters



Bellatrix
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100 second exposures
dark and bias corrected but not flat-fielded
some light cirrus


WCS astronomical coordinates added with astrometry.net

Color image maps i-> red, r->green, g->blue
Square root scaling to bring out faint stars


Scattering from cirrus and optics adds extra light in the center