NGC 6888 Crescent Nebula
The Crescent Nebula is a shell of gas that is being energized by the strong stellar wind from the Wolf-Rayet star WR 136, the bright star at the center of the nebula. Wolf-Rayet stars are very hot, massive stars that are blowing off their outer layers.
| Observatory: | WIYN Observatory Kitt Peak, Arizona |
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| Telescope: | WIYN 0.9-Meter |
| Instrument: | Mosaic I |
| Astronomer: | T.A. Rector (NRAO/AUI/NSF) |
| Date of Observation: | 05-16-2002 |
| Filters and Assigned Colors: | Oxygen [OIII] (blue), Hydrogen-Alpha (red) and Sulphur [SII] (yellow) |
| Exposure Times: | 30 to 42 minutes in each filter |
| Location of Image: | Cygnus |
| Field of View: | 60.5 x 58 arcminutes |
| Orientation: | North is down and East is to the right |
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