M106 and Neighbors

All Images Copyright Steve Cannistra

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Magnitude:  Roughly magnitude 8.4
Size: about 19' x 8'
Distance: 25 million light years
RA: 12h 19m
Dec: 47 degrees 18'

M106 is a bright spiral galaxy located in the constellation Canes Venatici.  Like M63 and M94, it was discovered by Pierre Mechain in 1781 and later added to Messier's catalog.   Several surrounding galaxies are present in this field of view.  Please click here for more information about this interesting galaxy.

Photographic Details:

Date:  June 7, 2005
Scope:  Takahashi FS-102 at f6 with TOA-130 focal reducer, on the G11 Losmandy Mount. 
Autoguider:  SBIG STV with e-finder.
Camera:  Maxcam CM10 (Finger Lakes Instruments).
Luminance filter (Astronomik).
Exposures:  12 x 8' each.  Total exposure duration 96 minutes.
Conditions:  Temperature 80 degrees F dropping to 65 degrees at end of session (I needed to refocus every 30 minutes); below average transparency; humid; poor seeing; intermittent breeze.  Imaging performed at -20 degrees C throughout.
Calibrated subs were debloomed with Ron Wodaski's Debloomer software, and then aligned in Registar.   Sigma combined using RC Sigma Reject MaximDL, followed by DDP in ImagesPlus (IP).  Subsequent levels and curves adjustments in Photoshop CS (16 bit format).

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