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Messier 41 · Open Cluster · Canis Major

LITTLE
BEEHIVE

A loose swarm of young stars scattered beneath Sirius, sparkling against the winter Milky Way like a small celestial hive.

Object TypeOpen Cluster
CatalogM41 · NGC 2287
ConstellationCanis Major
PhotographDeep Sky Hawaiʻi
LocationHawaiʻi Island
Sky AtlasStellarium
About the Object

Messier 41 is an open cluster containing a loose population of stars born from the same original cloud. Unlike ancient globular clusters, open clusters occupy the Milky Way’s disk and gradually disperse as their stars interact with the Galaxy and surrounding material.

M41 includes many blue-white stars along with several warmer orange giants, producing an attractive range of stellar colors. Under dark skies it can be glimpsed without optical aid as a faint patch below Sirius and becomes a rich field in binoculars.

M41 is a loose open cluster rather than a tightly bound stellar swarm, so its members will gradually drift apart under the influence of the Milky Way. Its brighter stars include both hot blue-white members and evolved orange-red giants, giving the cluster a noticeable color range and providing a compact view of stars with similar origins but different masses and evolutionary speeds.

Folklore & Mythology

M41 lies in Canis Major, the Great Dog, whose brightest star Sirius dominates the winter sky. Greek traditions commonly associate the dog with Orion, following the hunter across the heavens.

The “Little Beehive” nickname is a modern comparison with the larger Beehive Cluster in Cancer. Both names evoke the impression of many stars clustered together like a busy swarm, though the stars themselves are separated by enormous distances.

Canis Major is commonly imagined as one of Orion’s hunting dogs, but later traditions also connected the constellation with Laelaps, a magical hound destined always to catch its prey. The dog was set against the equally impossible Teumessian fox, which could never be caught, creating a paradox that Zeus ended by freezing both animals and placing them among the stars.

Find It in the Night Sky

Explore M41 in our interactive Stellarium atlas. Find Sirius first—the brightest star in the night sky—then move a few degrees south to the open cluster.

M41 · Little Beehive Cluster
Drag to explore · Pinch or scroll to zoom · Stellarium