Jupiter Io transit with Shadow Oct 26 2011 at 5 04 AM
Here's Jupiter's moon Io transiting across the planet on Oct 26 2011 at 5:04 AM EDT; Io's shadow is very nearly on top of Io. Seeing was good for the first time that I can recall this year. I recorded 2400 images for each channel prior to stacking and processing those images in Registax 5.1 and Astra Image 3.0SI. I used a C11 SCT and a 2.5X barlow lens for an effective focal length of 7,088 mm at a focal ratio of F/25. Jupiter was at an elevation of 31 degrees.