Observations in the week of April 20, 2020
The week of April 20, 2020, close to the new moon, we could again enjoy very nice weather. We had nice blue skies and warm temperatures during the day. Also at night, the temperature was still fine and the humidity very low. Luckily, I could fetch the ground board of my Obsession telescope on Monday. After installation of the old groundboard, I tested the Argo Navis. As the motor of the equatorial platform is broken (and a ServoCat is ordered), no tracking would be possible during this week. On Monday, I started observing, but after 30 minutes, clouds started rolling in. This short night could already confirm that the Argo Navis worked perfectly. The external battery was already empty after 30 minutes. This battery is very old, so it is probably time to replace it (and I need a new one for the Argo Navis anyway). Tuesday was a fantastic night! I enjoyed a lot of showpieces (lot's of Messier objects). The main highlights were M 82 (what an amazing cigar-shaped gal