![c100-1](https://www.nasa.gov/wp-content/uploads/2023/03/c100-1.jpg)
Exploring the Night Sky with Hubble’s Caldwell Catalog
This loose collections of stars, known as an open star cluster, is image 100 of the Caldwell catalog.
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https://www.nasa.gov/image-detail/exploring-night-sky-with-hubbles-caldwell-catalog/
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