Here is a time-lapse sequence of the sun through a Hydrogen alpha filter taken between 1 and 3 p.m. MST today. The interval between frames is 5 minutes. It's a 25 Mb file, so it might take some time to download. http://www.pbase.com/polakis/image/154930107 Tom -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.