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APOD: 2026 May 13 – NGC 188: Old Cluster in the New General Catalog

A deep sky view of the ancient open star cluster NGC 188, also known as the Polarissima Cluster, located in the constellation Cepheus.

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APOD: 2026 May 13 – NGC 188: Old Cluster in the New General Catalog

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APOD: 2026 May 13 – NGC 188: Old Cluster in the New General Catalog

Summary: This image features NGC 188, an ancient open star cluster located approximately 6,000 light-years away in the constellation Cepheus.

Captured by Neven Krcmarek, this deep sky image showcases NGC 188, an open star cluster estimated to be 7 billion years old. Located in the northern constellation Cepheus near the north celestial pole, it is also known as the Polarissima Cluster and Caldwell 1. The image highlights the cluster's evolved red giant stars, which exhibit distinct yellowish hues against the backdrop of space.

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1. Introduction to the New General Catalog (NGC) 2. Overview of NGC 188 (Polarissima Cluster) 3. Physical characteristics and age of the cluster 4. Location and observational context 5. Image credit and copyright information

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7 days: 6,522

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