Abell 74
Abell 74 is an ancient planetary nebula. Because of its age it is a very faint target. Ancient planetary nebulae are often distorted in shape due to interactions with the interstellar medium. Interestingly, Abell 74 is remarkably symmetric despite its age.
| 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: | 10-23-2011 |
| Filters and Assigned Colors: | Hydrogen alpha (red) and Oxygen [OIII] (blue) |
| Exposure Times: | 5x10min in each filter |
| Location of Image: | Vulpecula |
| Field of View: | 26.9 x 25.3 arcmin |
| Orientation: | North is left, East is down |
| Link to Larger Image | |
| Link to Full Resolution Image | |
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