A spherical cluster of bright white, red, and blue stars.

C87 (NGC 1261)

This image of the globular star cluster Caldwell 87 (or NGC 1261) combines observations made by Hubble’s Wide Field Camera 3 in visible and ultraviolet light along with infrared observations from its Advanced Camera for Surveys.

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