"These were cataloged by Charles Messier in 1781."
Don Machholz
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Astronomy clubs, Betelgeuse, Messier Marathon Search Sequence Podcast-9-Map-1Download Podcast-9-Map-2-MoonDownload Podcast-9-Map-3-MM-6Download Podcast-9-Map-4-MM-7Download
“This was a sweet spot for such discoveries: after many visual comet hunters left the field, and before the government-funded sky surveys took over.”-Don...
