M15
M15 is a globular cluster that is estimated to contain over 100,000 stars. This image demonstrates the new Mosaic 1.1 detectors' ability to see faint stars without overexposing ('saturating') the bright center of the cluster. Pease 1, a planetary nebula, is also embedded in the cluster. Can you find it? (Hint: It is blue and just slightly larger than a star).
| Observatory: | Kitt Peak National Observatory Kitt Peak, Arizona |
|---|---|
| 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: | 10-10-2011 |
| Filters and Assigned Colors: | B (blue), V (green) and I (red) |
| Exposure Times: | 20x25sec in B and V, and 26x10sec in I |
| Location of Image: | Pegasus |
| Field of View: | 17.8 x 20.4 arcmin |
| Orientation: | North is left, East is down |
| Link to Larger Image | |
| Link to Full Resolution Image | |
| © Copyright Statement |