| Common Name |
Pickering's Triangle Nebula |
| Formal Name |
Seimis 3-188 |
| Date |
5/17 - 5/24/2020 |
| Constellation |
Cygnus |
| Location |
Brewsky Observatory, Casa Grande, AZ |
| Equipment |
Takahashi FSQ106ED, QSI683wsg, St-i Guider, Astrodon filters |
| Temperature |
-15°C |
| Exposures |
| # |
Exp (sec) |
Filter |
Bin |
Net Time (hr) |
| 16 |
900 |
HAlpha |
1x1 |
|
| 17 |
900 |
Oxygen III |
1x1 |
|
| 15 |
900 |
Sulfur II |
1x1 |
|
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Total |
|
12 hrs |
|
| Processing |
Collected using ACP/Maxim DL
Processed with PixInsight
SynLum from combining all 3 NB filters
|
| Notes |
Distance 2400 ly.
Pickering’s Triangle is part of the Veil supernova remnant the Cygnus Loop. The filamentary segments represent an expanding shell or shock front of the supernova explosion that took place 10,000 – 20,000 years ago. The source supernova was a star 20 times more massive than the Sun.
The nebula was discovered photographically in 1904 by Williamina Fleming (after the New General Catalogue was published), but credit went to Edward Charles Pickering, the director of her observatory, as was the custom of the day.
- Wikipedia |
