Pickering's Triangle
Pickerings Triangle is part of the Cygnus Loop supernova remnant, which includes the famous Veil Nebula. It is located about 1,500 light-years from Earth. Astronomers estimate the supernova explosion that produced the nebula occurred between 5,000 to 10,000 years ago; the entire shell of the Cygnus Loop stretches more than six full Moons in width across the sky.
| 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: | 08-31-2007 |
| Filters and Assigned Colors: | Hydrogen-alpha (red), Oxygen [OIII] (blue) and Sulfur [SII] (green) |
| Exposure Times: | 5x8min for each filter and each pointing |
| Location of Image: | Cygnus |
| Field of View: | 35.5 x 69.2 arcmin |
| Orientation: | North is up, East is to the left |
| Link to Larger Image | |
| Link to Full Resolution Image | |
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