M3
M3 is a giant globular cluster that consists of several hundred thousand stars. It is slightly larger and more distant than M13. Like in all globular clusters, the stars are all old. Because the core of the cluster is very bright, many short exposures had to be taken so that it would not be over exposed.
| Observatory: | Kitt Peak National Observatory Kitt Peak, Arizona |
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| Telescope: | KPNO 4-Meter |
| Instrument: | Mosaic I |
| Astronomer: | T.A. Rector (University of Alaska Anchorage) and H. Schweiker (WIYN and NOAO/AURA/NSF) |
| Date of Observation: | 04-16-2014 |
| Filters and Assigned Colors: | B (blue), V (green) and I (red) |
| Exposure Times: | 25x25sec in B, 26x25sec in V and 24x10sec in I |
| Location of Image: | Canes Venatici |
| Field of View: | 21.4 x 21.4 arcmin |
| Orientation: | North is left, East is down |
| Link to Larger Image | |
| Link to Full Resolution Image | |
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