But wait a minute ....... what kind of dark spot is that? I soon recognized a shadow transit. And there was still some more "rubble" visible on the planet. To my delight it turned out that the Great Red Spot actually made an appearance. I enjoyed the image, until I realized that where there are shadow transitions, there are often moon transits too; just check in SkySafari and yes IO was less than half an hour away from the edge. This time I wanted to experience the slow appearance of the light spot of IO. Never once I thought about the possibility of setting up a bigger telescope. Painfully slowly, the bright wick of IO glowed very gradually. A magnificent sight. And so I thought of making a sketch of that. Finished right in. And it became quite a bit later....
Magnifications used were 120X and 93X with an 11mm Nagler and a 14mm Morpheus, respectively. The instrument as mentioned, a 102mm Maksutov on Alt/Az mount. Time approximately 20:22
Enjoy watching!