A Coathanger

Monday, July 27, 2026

July 26. Here’s Brocchi’s Cluster in Vulpecula, the Fox. It’s also unsurprisingly called the Coathanger:

DM33-01hangerS2.webp

However, not all Clusters are actually clusters. A star cluster is defined as a group of gravitationally-bound stars with a common origin in a nebula of some kind. But the arrangement here is random; none of the stars making up the Coathanger are connected. It’s just a fortuitous arrangement of random stars, and is termed an asterism. Most constellations are also asterisms.

Details:
Target: HD 182919, the central star (asterism is the Coathanger, Cr 399, Brocchi’s Cluster, Al Sufi’s Cluster)
Time: 2026-07-26 22:42..23:52
Equipment: Dwarf Mini, Astro filter, perfect EQ
Integration: 50mins (101×30secs, +17 failures; all satellites), gain 60
Conditions: Occasional cloud, windy, Bortle 6
Processing: PhotoDesk rotation

And so to bed…

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