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M74 | |
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(Click on image for Full Resolution)
(Click here for my previous best image of M74)
| Date: | October 24, 2005 |
| Exposure: | LLRGB 260:120:120:60 26 X 600s L, 8 X 900s R & G, and 4 X 900 B |
| Processing: | CCDAutoPilot2 in control for all images - CCDSoftV5 for image acquisition. MaxIm for image calibration,(5 each RGB flats, bias subtracted and median combined, 60 bias frames median combined, 20-900s darks Sigma Reject combined), alignment, normalization, stretch, and RGB combine. Photoshop CS for RGB processing,final adjustment and jpg conversion. |
| Conditions: | Average to good to poor |
| Scope: | RCOS 16" Truss @ f/6 |
| Camera: | ST-10XME/CFW-8A -15° |
| Comments: | This was taken over a span of 5 days. The FWHM varied from a low of 1.6" to a high of 4.3" on 15 min images. I was fortunate in that I was able to take alot of exposures because I had to throw many of them away. I was short in the blue and had to compensate in Photoshop. As always, the light pollution was terrible and it took a long time to tame the gradients as best I could. |
