| M3 |
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| NGC 5272 | |||||||||||
| Type: | Globular Cluster | ||||||||||
| Constellation: | Canes Venatici | ||||||||||
| Magnitude: | 6.4 | ||||||||||
| Size: | 16.2' | ||||||||||
| RA-Dec: | 13:42:11.23, 28:22:31.6 | ||||||||||
| Difficulty: | E | E=easy, T=tough, C=challenging | |||||||||
| Description: | |||||||||||
| A globular cluster, containing about 500,000 stars. M3 contains more known variable stars than any other globular cluster. It was Messier's first original discovery. With the naked eye, it is difficult to separate M3 from a nearby orange sixth magnitude star. Through binoculars, M3 is visible as a bright hazy spot. With a telescope and moderate power this cluster takes on a 3-dimensional quality with many stars resolved around the edges and across the central halo. | |||||||||||
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