Collinder399
About this celestial object
The “Coathanger” cuts distinctly through the star field—an asterism that delights even in binoculars.
Collinder 399—also Brocchi’s Cluster or the Coathanger—is a striking asterism in Vulpecula and easy to spot with small optics.
In the wide field, its characteristic hook shape stands out against the glittering backdrop of the summer Milky Way.
580 seconds total exposure suffice to cleanly resolve the geometry of the pattern.
Image and observation
Catalogue: Collinder399
Capture date: 2024-08-31
Total exposure: 580 s
Imaging and processing: Ulrich Schwarz · Vespera Pro