BrainBacon
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Joined 3 years ago
Here's a pretty great infographic on how they plan to collaborate with the Athena x-ray observatory to detect black hole mergers ahead of time - https://www.esa.int/ESA_Multimedia/Images/2019/05/How_can_LI...
It ends up being about 0.4 square degrees in the sky that they're able to narrow in on before the event. That narrowing takes roughly a month.
https://embed.plnkr.co/mdZX6C/
It isn't just doing primes though, instead the size of the dot generated is dependent on the number of even divisors for the number at that position.