M 33

M 33 – Pinwheel Galaxy


Date/time: 30.08.2008 0:55 to 30.08.2008 01:55
Ambient conditions: 10°C, transparency 4/5, seeing 3/5,
Location: Aach, Germany

Equipment:
Telescope: Celestron SC 8” with focal reducer Alan Gee at f/6
Mount: CGE
Guiding: ST-4000XCM
Camera: SBIG ST-4000XCM

Acquisition:
Software: CCDSoft V5
FOV, Image scale: 43.4 x 43.4 arcmin, 1.27 arcs/pixel
Sub-exposures: 60min (6 x 10min) lights at –20°C,
16 x 10min darks,
16 x 2s skyflats at –10°C,

Processing:
Calibration, stacking, DDP, hot pixel reduction in Images Plus 3.8,
curves, levels and sharpening in CS3, GradientXterminator,
noise reduction with Carbonis Actions,
color enhancement with Gabani´s method,
green cast elimination with Pixinsight LE 1.0.

Comments:
This was one of the first images from M33 with the combination C8 and ST4k.
Strong light pollution and vignetting degenerated the image. Only with big processing efforts
this final result was possible.

Download full size image:

Filename: galaxies/m33_2008-08-29_full.jpg
Filesize: 3319650 Kb
Download limit: unlimited
 

 

 

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