Sh2-112
Sharpless 112 is an emission nebula. It is glowing deep red because the hydrogen gas in the nebula is energized by the star BD +45 3216 embedded within. This star is much more massive than our Sun, and emits copious amounts of ultraviolet (UV) light that causes the gas to glow.
| 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: | 06-17-2014 |
| Filters and Assigned Colors: | B (blue), I (orange) and Hydrogen-Alpha (red) |
| Exposure Times: | 5x4min, 5x100sec in I, 5x6min in H-alpha |
| Location of Image: | Cygnus |
| Field of View: | 21.6 x 35.0 arcmin |
| Orientation: | North is right, East is up |
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| Link to Full Resolution Image | |
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