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M33
Object
Imaging
Processing
Object type
Size
Magnitude
Constellation
Distance
Size
Magnitude
Constellation
Distance
Spiral Galaxy
68.7' x 41.6'
5.5
Triangulum
2.4 Million light years
68.7' x 41.6'
5.5
Triangulum
2.4 Million light years
Date
Location
Telescope
Mount
Camera
Guiding
Binning
Exposures
Total Time
Location
Telescope
Mount
Camera
Guiding
Binning
Exposures
Total Time
2012-11-17/22
Pleasantville, NY
Hyperion 12.5" Astrograph
MI-250
FLI ML-16803
ST-402 - OAG
Luminance: 7 x 15-min frames, Bin 1x1
Color: 7 x 15-min frames each R, G, B
7 hours
Pleasantville, NY
Hyperion 12.5" Astrograph
MI-250
FLI ML-16803
ST-402 - OAG
Luminance: 7 x 15-min frames, Bin 1x1
Color: 7 x 15-min frames each R, G, B
7 hours
Acquisition with CCD Commander & MaxIm DL
Calibration with CCD Stack
Processing with Adobe CS4
Calibration with CCD Stack
Processing with Adobe CS4
Comments
Color frames taken with 1st quarter moon
Seeing was ok but the moon caused loss of contrast, and gradients
Guiding was ok for dec (.7 rms error) but a little worse in ra (0.9 rms error).
The image above is at 1/16th scale (~1k x 1k)
Seeing was ok but the moon caused loss of contrast, and gradients
Guiding was ok for dec (.7 rms error) but a little worse in ra (0.9 rms error).
The image above is at 1/16th scale (~1k x 1k)
Image Size
Medium (2k x 2k)
Large (4k x 4k)
Medium (2k x 2k)
Large (4k x 4k)
