ESO 2-4 (Galaxy Cluster AS21) ESO 2-4 (AS21) Field Annotated ESO 2-4 (AS21) Field No Annotation ESO 2-4 PGC 219936 PGC 219980 PGC 219996, PGC 220017, PGC 220052 and PGC 220085 PGC 220068 and PGC 220153 PGC 220115 PGC 220194 PGC 220195, PGC 220241 and PGC 220279 PGC 220251 and PGC 220281 PGC 220271 PGC 220334 and PGC 220381 PGC 220501 PGC 220542 PGC 220643 PGC 220720
