Re: (IAAC) estimating magnitudes
I'm working off visual observations. I had astroart suggested by someone else as well, it looks great. I visited the usno site this morning and found that two versions of the catalogue were available. SA2.0 is a smaller catalogue (it only contains a little over half a billion stars!) that looks like it would be much easier to work with than A2.0. But I wasn't sure how deep SA2.0 went. If it goes to 19 that would be great! The url for those who are interested is http://www.nofs.navy.mil/projects/pmm/catalogs.html
OneMain.com, Your Hometown Internet.
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