Messier 12 is a globular cluster located in constellation Ophiuchus. The cluster is 15,700 light-years away from Earth and contains approximately 200,000 stars. There are another two globular clusters in the vicinity: M10 south-east and M14 east.
Technical details:
| Telescope | Newton 254/1000 mm |
| Aperture | 254 mm |
| Focal length | 1060 mm |
| Mount | Gemini G53f |
| Autoguiding | ZWO 174MM, TS 60/240 mm |
| Camera | ZWO 071 Pro @-10°C |
| Corrector | Explore Scientific HR coma corrector |
| Filters | Astronomik L-1 - UV IR Block Filter |
| Exposure | 32x180s, Gain 94, bin 1x1, |
| Date | 2019-06-01 |