The nearly spherical globular star cluster Caldwell 84 is dense and thick with stars. Whiter stars appear near the center and blue and red stars farther out.

C84 (NGC 5286)

This image features the nearly spherical globular star cluster Caldwell 84. It is a composite of observations taken in visible and ultraviolet light by two of Hubble’s science instruments, the Advanced Camera for Surveys and the Wide Field Camera 3. These observations helped astronomers better understand the motions and chemical abundances of stars within the cluster.

Credits: NASA, ESA, A. Sarajedini (Florida Atlantic University), and G. Piotto (Università degli Studi di Padova); Processing: Gladys Kober (NASA/Catholic University of America)
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Image CreditNASA, ESA, A. Sarajedini (Florida Atlantic University), and G. Piotto (Università degli Studi di Padova); Processing: Gladys Kober (NASA/Catholic University of America)
Size640x664px