| Date/Location |
April 20, 2021 and zoomed image from May 13, 2017 |
| Camera and Settings |
SBIG ST-2000XCM CCD Camera -5°C |
| Telescope |
8-inch f/8 Ritchey–Chrétien Cassegrain (with a Televue 0.8x FF/FR) and Discovery 10" f/6 Newtonian with a Televue Paracorr Type 2 Coma Corrector |
| Mount |
Paramount MyT and Paramount ME |
| Exposure |
40 minutes (4 x 10 min) each image |
| Processing |
CCDOpts, Images Plus 6.5, Photoshop CS6 |
| Other |
Mag. 5.9 globular cluster in the constellation Boötes |
