Back to the roots. After all the data acquired under pristine Namibian skies, both locally and remotely, I managed to capture the Coathanger Asterism in my backyard. A few days after summer solstice, when astronomical dusk isn’t reached during the night.
A quick capture during a clear mid summer night. An “advantage” of the light polution here: even so astronomical twilight isn’t reached, the sky brightness is for approx. 3 hours in the range of SQM 19.5 to 19.9. SQM 20.0 is the maximum I measured in my backyard in spring 2020 with the excellent “lock-down” skies.
Hopefully a break in the currently cloudy and rainy weather for some additional O3 und S2 data during the next days before the moon returns.
Because it’s that time of year … a fresh shot at a very familiar target during two clear nights in October. Ha, L, R, G, B with the QHY268M, but still facing problems with the Esprit and the Optolong filters.