Quote:
Originally Posted by TrevorW
3rd image towards middle bottom don't know for sure if noise or speckling or what because I'm new at this.
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I think there are just lots of stars and nebulosity in that area Trev ... it's hard to tell from these small web sized images ... the original file is 4800x3600 pixels and 99.8Mb in size after stacking in DSS ... that's the downside of internet postings. There is quite likely some noise present across the whole image as it is a relatively short exposure for a dedicated CCD astro camera. I really like to do around 2 hours on an object to get smoothness but sometimes the conditions just don't allow it. That's when you start collecting and collating exposures ... that's also when you need to have a permanently aligned observatory setup. It's coming ....... again ...... I really miss it.
