Google said I couldn't do it
Very far away, at the edge of the Solar system, there's a dwarf planet Eris, that many heard of, but never seen or captured with a telescope. The problem is that it's very faint (magnitude 18.5), and constantly moving across the sky, so you can't do multi night imaging. I recently captured Makemake with Dwarf 3 and thought that I can capture something even dimmer. Although Google said that you can capture this object only with aperture starting from 8 inches. I was planning to try capture Eris for over a month now, waiting for clear moonless night, so I could take full advantage of my bortle 5 area. So on 3 october, I deployed and polar align my Dwarf 3, and created imaging plan. Because Eris was not in atlas, I added a nearby star, HD 10955. At the morning I processed the data. Because Eris looks similar to a star I used a Siril script for asteroid and comet finding, and Eris was exactly at the center of this dimm dot I marked on first photo. I also used Stellarium to confirm that it is actually Eris. This dot as actually looks slightly blurry, because of 5 hours of motion. So, Dwarf 3 is capable of capturing Kuiper belt objects, despite its tiny aperture!
Telescope: Dwarf 3;
Exposure: 5 hours;
Subs: 120s 70gain;
Bortle: 5;
Processed in Siril