M3 (Doug Summers)

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: M 3 · NGC 5272

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M3

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M3

At a distance of 34K light-years, and with about a half million stars, M3 sits at a favorable altitude above the galactic disk to be a very nice target. The core of the cluster is only 11 light years across, and the whole extent is less than 200 light years. That's a lot of stars in a very small space! M3 is the first object actually discovered by Messier himself. The cluster is approaching us at a rate of ~150km/second. Home to an unusually large number of variable stars, and with higher than normal metalicity, M3 contains both older redder stars, but also many blue stragglers.

What I like about M3 is the colored field stars, and the presence of several galaxies (a few even showing intermixed with the cluster stars).

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The OSC Club (One Shot Camera)
Celestron RASA

Globular Clusters
Messier Objects
z-Chiricahua Astronomy Complex

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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