| Width | 1,600 pixels | |
| Height | 1,200 pixels | |
| 300 dpi print width | 5.3 inches | 13.5 centimetres |
| 300 dpi print height | 4.0 inches | 10.2 centimetres |
NGC 6121 is possibly the closest globular cluster to Earth, and it has been discovered that the cluster contains some of the oldest white dwarf stars in our Galaxy.