Spiral Galaxy NGC 6946                                         

Taken @ Kitt Peak National Observatory June 16 & 17, 2004    Image Credit: Fred Calvert / Adam Block / NOAO /AURA / KPNO / NSF

NGC 6946 is a face-on SAB(rs)cd magnitude 8.9 galaxy in the constellation Cepheus. This classification refers to the presence of a small core with multiple well-defined arms (cd), with a poorly-developed bar across the middle (AB) and an inner confused ring (rs). Nearly twenty million light-years from Earth, it is over seventy thousand light-years across.

Seven supernovae have been discovered in this galaxy and are listed below.

With this number of supernovae which have been found in this galaxy, NGC 6946 is leading the statistics, just one SN more than follow-up M83.

The data for this image was taken over two nights.


20" RC Optical System Ritchey Chretien - Cassegrain @ f 5.5

Software Bisque Paramount ME Robotic Mount

SBIG ST10XME with Color Filter Wheel and 6.3 Focal Reducer


    SBIG ST10XME CCD            20" RC Optics Telescope         Advanced Observer Facility   Me at 4:00 AM "Coffee"

Exposure Data:

Luminance = 120 minutes binned 1x1

Red = 15 minutes binned 1x1

Green = 15 minutes binned 1x1

Blue = 15 minutes binned 1x1olor filter wheel

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