Okay, don't expect wonders here with just 90mm of aperture on the spotting-scope variety of Celestron's C90 Maksutov-Cassegrain.
All of these images where taken on the evening of July 29, 2020 using the C90 and an uncooled ZWO ASI174MM camera with a Celestron 2X Ultima SV barlow (giving an e.f.l. of about 3500mm, f/39, since the barlow was producing significantly more than 2X on this native f/13.9 system). Because of the latter I ended up reducing most of these images to about 75% of the original capture scale. All of this was carried on my similarly mighty Celestron AVX mount (is that too much use of "mighty?").
The color images of Jupiter and Saturn were taken using a set of ZWO RGB filters while the remainder are mono images taken with a Baader 610nm long pass filter.
Image processing with AutoStakkert!, Registax, PixInsight, and Photoshop CC2019. Image capture done with SharpCap.
I started on the gibbous moon and then took a few images of Vega and the Double-Double star in the constellation Lyra to help determine my image scale. Then I went on to Jupiter and Saturn before my session was ended just before 11PM PDT by marine layer clouds.
First up, the lunar southern highlands (with Tycho and Clavius) and the northern Mare Imbrium (with Plato, Archimedes, and the Hadley Rille).
Edited by james7ca, 04 August 2020 - 07:21 AM.