Hey there Ron, I stopped by and the dates have been blacked out so I'm not sure if it's open to the public at this time. The observatory is operated in controlled by DU. So it might be a good idea to check out their science department to see if they will be reopening their doors to the general public.
I believe on Tuesdays and Thursdays it's open to the public. I don't see any info online but there was a sign with a schedule on the back of the building
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