Again serendipity strikes… outside at 04:00 EDT to imaging Jupiter and continue to commission the Celestron 9.25 with a x1.5 barlow and low! Io is very close to Jupiter and its shadow was starting a transit of Jupiter.. right near the Great Red Spot!
Very nice. We imaged until it wsa too bright (dawn was approaching) and it was time for work. This is the best of about 10 runs.
Details and resolution are better than the previous 8″ optical tube as well.
This was the best 5% of 7200 frames with exposures of 3ms over a run of 60 seconds. Jupiter’s altitude was phenomenal.. 58 degrees high! The airmass was about 1.18 Jupiter’s diameter was 39 arcseconds