The Messier Catalogue

The Messier Catalogue — One Universe, 110 Targets

The Messier Catalogue is one of the most famous lists in astronomy, containing 110 of the most well-known deep-sky objects visible from Earth. From glowing nebulae and distant galaxies to dense globular clusters, it’s a collection of some of the most fascinating sights our universe has to offer.

But the catalogue wasn’t originally created to showcase beautiful objects. It all started with a comet hunter.

A comet hunter’s cosmic detours

In the 18th century, French astronomer Charles Messier was on the hunt for comets . As comets travel through the Solar System, they appear to drift across the sky against the distant background stars. Messier kept coming across faint, fuzzy patches that looked a little like comets — except they didn’t move.

These objects were distant nebulae, star clusters and galaxies, far beyond our Solar System. By cataloguing them, Messier could distinguish these stationary objects from the comets he was actually searching for. His first catalogue was published in 1774, and subsequent editions expanded the list. The catalogue eventually became one of astronomy’s most recognisable collections of 110 deep-sky objects. Messier discovered around a dozen actual comets during his lifetime, but it was these comet-like objects he catalogued along the way that became his most lasting contribution to astronomy.

Messier compiled his catalogue primarily from Paris. This makes it particularly well suited to observers in the Northern Hemisphere, including my own backyard in the Netherlands!

From faint smudges to cosmic showstoppers

Through the telescopes of Messier’s time, many of these objects appeared as little more than faint, fuzzy patches. Today, with modern telescopes, sensitive cameras and hours of exposure time, those same patches can turn into absolute cosmic showstoppers — revealing intricate spiral arms, colourful clouds of gas, delicate dust lanes and countless stars.

That’s what makes astrophotography so rewarding: capturing what the eye alone could never reveal, one photon at a time.

My Messier journey

This page is my personal journey through the catalogue. All 110 objects have a placeholder in the overview above. If a square contains an image, I’ve captured that object myself. If it’s empty, it’s still waiting for its turn under my telescope. I’ll keep coming back to this page as I photograph new targets, add them to the grid and revisit older images with better data, equipment and processing techniques.

Will I manage to capture all 110? Who knows! Some targets are tricky from my location, and others will require the right season, clear skies and plenty of patience.

But that’s part of the adventure.

Keep checking back — the catalogue is a work in progress, and the universe isn’t going anywhere.