20 April 2026 - Moon, double stars
Got set up about 22:15 MDT. IJust did a SkyAlign using three bright stars. First was Arcturus, but I forgot to note the other two. That's something I need to be sure to do from now on. NELM was about 3.5-4. Stars not twinkling very much st zenith, but twinling more as you looked lower. Transparency was about 3/5 and got worse as the night progressed. I initially thought it was possibly moisture in the air, but humidity was only about 34% and dew neve formed on any surfaces. It turned out to be smoke haze. By 08:00 the next morning the smoke in the valley was thick enough to smell and there was a haze over everything. The Moon was about 17% waxing. I wanted to observe it before it went behind the trees to the west so it was my first target. I started out using the 25mm Plossl eyepiece (81x), and worked north along the terminator from the south edge. After getting a good overall view I went to Mare Crisium. While scanning around it a detail I hadn't noticed before caught my e...