M82 and M51 Long Exposures


WARNING! These images are not pretty! They show the effect of lack of guiding. My drive should have done better even uncorrected and I need to train it for PEC.

M82: Screen dump in QCV2 is on left and my attempts at processing are at right.

Dark frames did usually subtract well, small specks from noise were removed, but the herring bone pattern was a big problem that I need to correct. M51 images are the least affected by the herring bone problem.

QCV2 screen dumps on left and attempts at processing on the right:


120 seconds

180 seconds

240 seconds


180 seconds

240 seconds

300 seconds

Go to: Plans for cooling with a peliter device and fan