Shadow transits on Jupiter are no biggie, but a littler rarer are double shadow events. Though the weather looks to cloud out this event for us :( here are the times in case someone has an open window and wants to observe it. I also believe that October 23 from 7:40 p.m. to 9:04 p.m. Mountain Daylight Time. If it the sky is open, I would love to take a look at this as it should be pretty cool and with the moon at a waning gibbous, Jupiter will be a good visual item. Another tidbit is this site http://www.timeanddate.com/ which allows you to see what the offset is from Universal Time and to calculate it. It also allows a UT Clock html so you can place it on your website if you want. I like the moon rise and set calculator as after picking USA-Utah-Salt Lake City it gives the times for the current week or for the current month if you redo it at the top. A little easier to read then the USNO one (but at USNO you can get a location closer to you). I got this information from the One Minute Astronomer which is a daily email I receive. Finally, if you didn't see it on Sky & Telescope here is a link http://www.skyandtelescope.com/news/home/105515108.html to the article where Mike Lynch, a well known amateur and meteorologist in Minnesota had the sun aid him in burning up his 14.5" StarMaster Dob. There is a link at the bottom of the article in S&T that shows you a video and the remains of the secondary and primary mirrors and its structure. -- Jay Eads