![\"\"](\"https:\/\/starlightcascade.ca\/blog\/wp-content\/uploads\/2020\/09\/2020-09-12-0048_1-kk-l-jupiter_exposure66ms_zwoasi290mc_pipp_lapl4_ap27_drizzle15wk9-1.png-annotated-1.png\")
<\/a>g a 66ms exposure, with no autoalignin gand a region of interest of around 600×600 pixels.\nThen I took another with autoalign turned on. This helps give me a record of the seeing that night.
\nThings looked good. The mount was not tracking well so I was manually guiding corrections every 30 seconds or so.
\nThen I moved up to a 120sec run, correcting guiding again about every 30 seconds.
\nThe 120 sec was the limit I used on the older 20cm meade lx200gps.. but then I realized that was because of its higher resolution and the max time before a surface feature moved from one pixel to the next.
\nOn this smaller scope, I should be able to do longer imaging runs without that happening.
\nSo I bumped it up to 180 seconds, more frames per run allowing for better stacking.<\/p>\n
In the event the dew fell, the corrector plate fogged over and I called it a night after only 11 runs in total.
\nNote to self – build a small dew shield.
\nI am toying with the idea of building a slightly larger imaging observatory. 4’x4′ gross is just a little too small.<\/p>\n
So.. without further , here is the best of Jupiter last night, serendipitously capturing a shadow transit of the satellite Europa and Europa itself on the upper right of Jupiter.<\/p>\n