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A little knowledge. A more familiar sky.

Learn the night sky.

Recognise it. Remember it. Find it again.

Five questions · any topic
Your next small discovery2 min read

Know what you’re looking at

Put a familiar target to each kind of deep-sky object.

M31Galaxy M42Nebula M45Open cluster M13Globular cluster
Illustrated object types · tap a target for its field notes

M31 · Andromeda

A galaxy: a vast system of stars, gas and dust.

M42 · Orion Nebula

A nebula: a cloud of gas and dust where stars are forming.

M45 · Pleiades

An open cluster: a comparatively loose group of stars.

M13 · Hercules Cluster

A globular cluster: a densely packed, roughly spherical star cluster.

Make it stick

Galaxy. Cloud. Loose stars. Packed stars.

M31 → M42 → M45 → M13. Attach the type to the target.

Got the idea?Hide the lesson and see what comes back.
Sources & further reading