On June 22, I went to a semi-dak site, SQM 20.50 Dobsonian 10".
The day after, I observed a couple of objects from home, with an SQM of 18.50, Dobsonian 16".
The conclusion is that a 10" under SQM 20.50 outperforms a 16" under SQM 18.50, at least on the types of objects below.
Day 1. NGC 6535 is a small globular cluster that resolves into very fine stars in a star-rich field (with 31 mm and NV). https://telescopius....535/by-elpajare
Day 2. NGC 6535. It was difficult to resolve into stars.
Day 1. NGC 6823 is an open cluster with nebulosity, which appears as a glow inside the polygon outlined by the brightest stars. https://telescopius....gc-6820/by-kenn
Day 2. NGC 6823. The nebulosity is not seen.
