Globular Cluster Palomar 1 in Cepheus
Taken by Tom Wildoner on October 17, 2025 @
Weatherly, PA, USA
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Camera Used: Unavailable Unavailable
Exposure Time: Unavailable
Aperture: Unavailable
ISO: Unavailable
Date Taken: 2025:11:30 07:49:58
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Details:
Palomar 1 is a globular cluster, part of the Palomar group in the constellation Cepheus in the halo possibly in the Outer Arm of the Milky Way galaxy. First discovered by George O. Abell in 1954 on the Palomar Survey Sky plates, it was catalogued as a globular cluster.
The exact number of stars in Palomar 1 is not well documented, but all evidence points to a sparse and low-mass cluster. It carries a Shapley–Sawyer concentration class of XII, the lowest possible rating, indicating an extremely loose structure with little central condensation. In appearance, it resembles a faint, diffuse smudge rather than the compact, bright balls we associate with showpiece globulars like M13 or M3.
Tech Specs: Meade 12” LX-90 SCT Telescope, Antares Focal Reducer, ZWO ASI2600MC camera running at -10F, 216 x 60 seconds, Celestron CGX-L pier mounted, ZWO EAF and ASIAir Pro, processed in DSS and PixInsight. Image Date: October 16, 2025. Location: The Dark Side Observatory (W59), Weatherly, PA, USA (Bortle Class 4).
Photographer's website:
https://www.thedarksideobservatory.com
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