Click on image for larger version.
|| M109 is a very dim barred spiral galaxy. Both the central nucleus and
outer arms are fairly smooth- devoid of hotspots of star formation. It is
estimated that this galaxy is 50 million light years away from us. This
image does well to show some detail in the bluer arms with a more yellow
interior. To do this galaxy justice longer exposures will be necessary.
Other barred spirals in the Messier catalogue include
RC Optical Systems telescope Operating at f/8.4
Paramount ME Robotic Telescope Mount
SBIG ST10XME CCD camera with color filter wheel
color production was used to create this image.
Luminance = 30 minutes + data below
Red = 40 minutes
Green = 90 minutes
Blue = 50 minutes
Filter wheel got stuck in GREEN position instead of
CLEAR. Took 90 minutes of GREEN before determining it was not
the unfiltered image. Based on the amount of time left- decided to
take as much hi-resolution data as possible and co-add everything.
One iteration of L-R deconvolution (sharpening) algorithm using
CCDsharp was applied to the luminance image.
Digital Development (DDP) via Maxim/DL was also used in order to
display the the very dim and very bright details of the image simultaneously.
Minimum credit line: Dale Swanson/Adam Block/NOAO/AURA/NSF
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