The Digitized Sky Survey (DSS) image in the lower left shows the star cluster Caldwell 89 (NGC 6087) as seen from the ground. It consists of a field of stars, some haloed in reddish light. The small square in that image shows the field observed by Hubble’s Wide Field Camera 3 (WFC3), which is on the right and features the bright star S Normae.Caldwell 89 in the center of the image, surrounded by lesser stars.

C89 (NGC 6087) Inset

The Digitized Sky Survey (DSS) image in the lower left shows the star cluster Caldwell 89 (NGC 6087) as seen from the ground. The small square in that image shows the field observed by Hubble’s Wide Field Camera 3 (WFC3), which features the relatively bright star S Normae.

Credits: Ground-based image: Digitized Sky Survey; Hubble image: NASA, ESA, and A. Riess (Johns Hopkins University); Processing: Gladys Kober (NASA/Catholic University of America)