Thats really cool Tom! The rings get brilliant at that time. Have you tried longer exposures to get some of the really dim close in satellites? Chris --- On Sun, 3/8/09, Tom Polakis <tpolakis@xxxxxxx> wrote: From: Tom Polakis <tpolakis@xxxxxxx> Subject: [AZ-Observing] Saturn's Rings: Time-lapse To: AZ-Observing@xxxxxxxxxxxxx Date: Sunday, March 8, 2009, 3:03 PM I have been putting together a time-lapse animation of the rings of Saturn opening since their minimum late last year. Last night, I added the third frame, and put the result here: http://www.pbase.com/polakis/image/109980651 Since I have scaled the images up, and just taken what the seeing offers, the images are rough around the edges. Note how much the rings have brightened in last night's image, when Saturn was at opposition. This is called the Seeliger effect, and you also see it when you look into a forest exactly opposite the sun when the sun is low. The flare-up is due to the lack of shadows when the light source is coming from behind. It was also prominent as a brightening of the lunar soil in a lot of the Apollo pictures. Tom -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list. -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.