Every spring, the approach of the Messier Marathon brings a familiar surge of excitement. During the new moon in March it is possible to see all 110 Messier objects in one night. It’s one of the great traditions in amateur astronomy—a shared challenge, a reason to gather, and a powerful way to introduce others to the night sky. Nearly everyone I’ve spoken with who has attempted it has come away with a sense of satisfaction, whether or not they completed the full catalog.
I’ve worked through the Messier Catalog several times over the years—but never as a marathon. That’s been a deliberate choice.
My observing has gradually moved away from “find and identify” toward something slower and more deliberate. I want to spend time with an object—to see it, not just log it. I want to notice structure, contrast, subtlety. And just as often, I find myself drawn to what lies nearby: the surrounding star fields, neighboring clusters, faint companions that don’t make the lists.
The marathon, by design, encourages a different mindset—efficient, focused, and fast. There’s real value in that. But it’s not quite how I want to spend my time under the sky.
A Different Kind of Marathon
This year, I found myself considering the marathon again. But instead of trying to compress the entire catalog into a single night, a different idea began to take shape:
What if I stretched the marathon across the entire year? Rather than observing under constraint, I could revisit each object when it is near its best placement in the sky—when it culminates high, when contrast is optimal, when there’s time to really look. Take M30, for example. In March, it’s a challenge—it’s low and just rising as the dawn comes. It’s fleeting, barely there. But six months later, it becomes something else entirely: an object high in the sky that invites study rather than detection.
So instead of one long sprint, I’m planning four seasonal sessions—March, June, September, and December. Each session will focus on roughly a quarter of the catalog, observed under favorable conditions.
A journey instead of a race.
Expanding the List
While thinking this through, it became clear that the Messier list alone isn’t quite enough. It’s an extraordinary catalog, but it leaves out many objects that are just as compelling.
The Caldwell Catalog is often suggested as a companion, but its strong southern emphasis makes it less practical for this kind of structured, seasonal approach from mid-northern latitudes. It also has several objects that are great astrophotography objects, but nearly impossible to see visually.
A better fit, at least for me, is the RASC Finest NGC Objects list. It complements the Messier catalog beautifully, adding many standout objects while remaining well-placed for northern observers. Together, these two lists form a working set of about 220 objects—more than enough to sustain a year-long exploration.
The Goal
This project isn’t about completion for its own sake. It’s about refinement. Spend enough time with each to really observe and record notes that are more careful and perceptive than before.
Each “session” may span several nights within a month. The structure is loose by design, but the intention is clear: by the end of the year, I’ll have revisited this collection with fresh eyes and a deeper understanding.
Working Notes
This project forms the foundation of the observing notes collected here on Working Notes. These are not meant to be definitive descriptions or polished guides, but rather a record of seeing—what was noticed, what was missed, and how perception evolves with time and attention.