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Friday, April 16th, 2010
M51 Again
 
This time I was able to pick up more detail because the focusing was better BUT clouds rolled in and I was not eable to get 2 hours which it is what I wanted and I was only able to get 90 min., so I have less signal.  Also, external temperature was about 10-20 degrees higher than in my previous time.
 
I don't get tired of doing this objects, and it is close to the zenith which it is good for reducing light pollution, so I will probably keep doing it and it gives me the chance to experiment with processing.
 
This time, processing was about small changes, something I've heard many times, so I had a lot of layers in Photoshop.  The overall image is too blueish and I messed up at the very begining when I was messing around with color balance, still I wanted to experiment with some stuff, so I learned something new.
 
Location = Portland Downtown
Temperature = 51-62F
 
92subs x 1 min. = 92min.
 
92L x 40 Darks x 40 Bias x 40 Flats
 
Main Telescope = Orion Mak 150 FL=1800mm + Canon 40Dh
Guiding Scope = ST-80 + SSAG
Mount = HEQ5 Pro
 
The usual suspects for processing = DSS with Mediam Sigma-Kappa Clipping, Photoshop, Carboni and GradientXTerminator and Ninja Noise.
 
 
Enjoy it!
 
M.


Image Gallery For This Session
m51 2t testv1 web2
   

m51_2t_testv1_web2.jpg
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