Messier Marathon 2022


All night


March 11 - 12

Online from 6:30 p.m. - 6 a.m.
In person from 6:30 p.m. - 10 p.m.


Free online

(In-person included with General Admission)

An Overnight Virtual Star Party

Lowell Observatory is proud to present the 3rd annual Messier Marathon, an all-night virtual star party, during which we’ll hunt for all 110 objects in Charles Messier’s famous catalog. These are among the most prominent deep-sky objects visible in the night sky, including a variety of star clusters, nebulae, galaxies. We’ll broadcast live from the Giovale Open Deck Observatory (GODO), using our state-of-the-art 14″ PlaneWave telescope and MallinCam system. Throughout the night, we’ll hear from members of Lowell’s superstar educator staff about what we’re viewing, facts about the Messier catalog, and much more. There are sure to be plenty of laughs and fun along the way, too!

You can also download your own Messier Objects sheet to check off the objects you find with us.

*Note: Programming can be canceled due to inclement weather.

How to Join

Join us all night virtually on YouTube, or come up to Mars Hill from 6:30 p.m. – 10 p.m. to check off objects with us in-person (included with General Admission).

Buy General Admission Tickets

Member's Messier Marathon

Members are invited to an exclusive member event to view the Messier objects at the Giovale Open Deck Observatory after hours from 10 p.m. – midnight.

Learn more about the Messier catalog