
Messier 3 (M3 or NGC 5272) A globular cluster of stars in the northern constellation of Canes Venatici. Discovered by Charles Messier on May 3, 1764, and resolved into stars by William Herschel around 1784.


Messier 3 (M3 or NGC 5272) A globular cluster of stars in the northern constellation of Canes Venatici. Discovered by Charles Messier on May 3, 1764, and resolved into stars by William Herschel around 1784.
Looking for a past lecture?
Watch our Video Library
The Marshal Martz Memorial Astronomical Association is a volunteer-run 501(c)(3). Every visit is free — your membership and donations keep the telescopes running and the lectures coming.
[We] just engaged in the Wednesday evening sky watch experience and were thoroughly enriched by not only the visual displays of the telescopes but the knowledge & experience of the volunteers ~ The Grissoms
Copyright © 2026, Martz-Kohl Observatory.