Image Details |
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| OBJECT: | M1 The Crab Nebula | ||
| DATE IMAGED: | December 12 2001 | ||
| EQUIPMENT USED: | 12.5" RCOS @ f/9 | AO-7 / ST-8E + CFW-8 | AP 1200 GOTO |
Exposure Details |
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| LUM: 7 x 600sec | R: 3 x 600sec | G: 3 x 600 sec | B: 3 x 600sec |
| Notes: Transparency was fair but seeing was pretty poor with a measured raw FWHM of approximately 2.5 arcseconds. Luminance Images obtained with unbinned pixels, all colour exposures obtained at 2x2 binning, RGB ratio of 1:1:1.6 set and colour components normalised in Maxim CCD. Processed in Maxim CCD and Photoshop 5.5 Compare this image to my earlier M1 taken a year earlier - the difference is a result of refining the equipment setup and an improvement (I hope) in my ability to take and process images. A long way to go still but getting there is fun! |
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