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Coathanger and Dark Nebulas (Draco62 RMod).jpg
This frames the dusty starfield in Vulpecula the Fox that contains the famous Coathanger stellar asterism at bottom, also known as Brocchi's Cluster or Collinder 399. However, it is not a true star cluster made of gravitationally bound stars; it is a line-of-sight coincidence of stars that makes up a distinctive asterism. To the left of the Coathanger is an actual star cluster, the small NGC 6802.
The field also has some bluish haze from reflection nebulas, as well as distinct dark nebulas such as the curling forms at top. Oddly, they do not seem to carry any designation from the Barnard Catalogue. At the very bottom is the small reddish emission nebula Sharpless 2-82. The orange star at top is Anser, or Alpha Vulpeculae. Embedded in the lower of the two main dark nebulas at top is the small blue reflection nebula van den Burgh 126.
The field of view is about 8.2° by 5.5°, similar to binoculars.
Technical:
This is a stack of just 6 x 4-minute exposures with the Founder Optics Draco 62 astrograph with its f/3.9 Reducer, and the astro-modified Canon EOS R camera at ISO 800. No filter was employed here. On the Star Adventurer GTi mount autoguided with the MGEN3 autoguider. Taken at the Southern Alberta Star Party in the Cypress Hills in September 2024. Incoming clouds prevented more exposures.
The field also has some bluish haze from reflection nebulas, as well as distinct dark nebulas such as the curling forms at top. Oddly, they do not seem to carry any designation from the Barnard Catalogue. At the very bottom is the small reddish emission nebula Sharpless 2-82. The orange star at top is Anser, or Alpha Vulpeculae. Embedded in the lower of the two main dark nebulas at top is the small blue reflection nebula van den Burgh 126.
The field of view is about 8.2° by 5.5°, similar to binoculars.
Technical:
This is a stack of just 6 x 4-minute exposures with the Founder Optics Draco 62 astrograph with its f/3.9 Reducer, and the astro-modified Canon EOS R camera at ISO 800. No filter was employed here. On the Star Adventurer GTi mount autoguided with the MGEN3 autoguider. Taken at the Southern Alberta Star Party in the Cypress Hills in September 2024. Incoming clouds prevented more exposures.
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- © Alan Dyer/AmazingSky.com
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- 4480x6720 / 33.3MB
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- Contained in galleries
- Star Clusters, Stars, My Latest
