Joe, The images are a time series - a chronograph - that overplot a series of planetary images over time onto one master background - an image taken on May 1. I believe Cory was looking at the earlier May 13 cumulative image - http://www.slas.us/gallery2/main.php?g2_itemId=4305 - which shows the position of Venus on separate days - May 1 and May 2 and then May 12 and 13. The labeled version of the cumulative May 13 image - http://www.slas.us/gallery2/main.php?g2_itemId=4302 - lists the different dates. When I began this photo series in early May, I was hoping to do a time series from May 1 through May 29. But between May 3 and May 11, Salt Lake was completely clouded out. That period included the key May 9 close conjunction between Jupiter and Venus as Jupiter rose above the local horizon. Because of this imaging gap and beginning with the May 14 cumulative image, I have decided to crop the master frame to capture a photo sequence between May 12 and May 27. See - http://www.slas.us/gallery2/main.php?g2_itemId=4308 Clear Skies - Kurt P.S. - I have also changed my digital processing technique from the steps listed in my 2011-05-03 16:28-600 post. The changes concern how to overlay just the planets from each day's additive image to the master background frame. Currently, I align the new addition image to the local horizon. Then I make a new clear transparency. Then using Gimp's (or Photoshop's) Ellipse Selection Tool, I multi-select a circle around Jupiter and Mars. Then just the planet's are copied and pasted into the transparent overlay layer. Then the day's additive image can be discarded or stored as a non-visible layer.