Main Question or Discussion Point
The frequency of supernovas in our galaxy is about one per century. Has there been a supernova in the Andromeda Galaxy in the last 200 years?
I'm going to be annoyed with Betelgeuse when it goes supernova 10 years after I die. :rofl:Yup, and it's really annoying that it didn't go off ten years later when we would have had photographic plates.
On the other hand, I know more than a few people that were annoyed that SN1987A went off when it did rather than a decade later when Super-Kamiokande was in operation.