Penumbral lunar eclipses, the stars Betelgeuse and Castor, and the Quadrantids meteor shower.
"In Messier's case it was known comets leading to new Messier Objects. Centuries later it was known Messier Objects leading to new comets."-Don Machholz
"The stars twinkle, the planets do not."Don Machholz
“This is how the Massive Marathon was invented.”-Don Machholz Podcast-109-Map-1-Evening-SkyDownload Podcast-109-Map-2-Morning-SkyDownload
