NGC 6624 Globular Cluster (IMAGE) Max-Planck-Gesellschaft Caption The NGC 6624 globular cluster in the Sagittarius constellation. The astronomers have identified a total of six pulsars in this globular cluster to date; the first one was J1823-3021A. Credit Copyright NASA/ESA/I. King (University of California, Berkeley) Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.