The South African Astronomical Observatory marks its 200th anniversary on 20 October. A celebratory conference will run from Tuesday 20 until Friday 23 October 2020.
This was to have been a major international event but one does what one must.
The conference can be accessed here. Virtual attendance at the conference is free of charge. Note that the published times are UTC+2. 2 pm in Cape Town is 8am EDT.
There's an article from one of the local rags here ...
Clearest & darkest