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Originally Posted by JohnOwens
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Originally Posted by ChibiVader
iraf doesn't have an image stacking feature?
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I think it does? but I was hoping not to have to wade through too many of the other features (also an issue with some of the packages that are intended to control your telescope and take the pictures for you, too), and I think that might have been one that only used FITS images, and I'm hoping for one that will take JPEGs, and hopefully AVIs, too. I did download it and install it, but it's got a bit of a learning curve. (And you almost have to create a new user with the name 'iraf' and its own home directory?? Whose bright idea was that?) |
Sure, IRAF is the way to go - if you care about exactly how many sigma to reject above and below the mean, or you need to reject the top 18% at each pixel, or use the median, or care about the exact registration behavior during alignment at the 0.05-pixel level and need to specify the exact interpolation procedure ... you get my drift. (At least IRAF now knows how to import JPEG and similar formats...) Certainly for almost any amateur application, it is much more tedious compared to Mira or Registax under Windows. ("Much" doesn't cover it...) although there are some tricks letting it do the bookkeeping that can speed things along. The holdup is that, as far as I've ever been able to tell while using IRAF since 1985, you have to create a file with sets of registration points for each image, which is done either manually or with a lot of manual help (although there may be a feature now that lets it catalog stars and try to match them).