I can add to this thread with a but, .
while doing the public viewing night we saw something cross the sky above the observatory which at first had us wondering what. . . ?
The view of the sky from a observatory is somewhat restricted by the roof. What we saw seemed to turn and change direction while its speed was way to quick for a satellite or high alt aircraft.
It was only after a group of these objects came over that we were able to identify them; Against a very dark sky with a good moon to back light them Much to our amusement. They were sea gulls. Recently a pigeon has been seen circling our dome. . . mischief is afoot. I will not jump to conclusions again.
What did I think it was,? I am far too embarrassed to say.