Messier 12

(Click for Full Resolution)

OBJECT INFORMATION

Name/Designation Messier 12 (Gumball Cluster)
Object Type Globular Cluster
Constellation Ophiuchus
Distance ~15,700 light-years
Apparent Magnitude ~6.7
Angular Size ~16′ (~0.27°)

IMAGING

Date July 19, 2025
Location Athens, Greece
Frames 55 × 60″ exposures
Integration 55m
Camera Settings Gain 101 | Temperature: -5°C
Bortle Scale 8/9 (City sky)

EQUIPMENT

Telescope Sky-Watcher Explorer 130PDS
Camera ZWO ASI533MC Pro
Mount Sky-Watcher EQ5 Pro
Filter Baader UV/IR Cut
Accessory Baader 2″ MPCC Mark III
Guide Scope Artesky 32mm Mini
Guide Camera ZWO ASI120MM Mini

SOFTWARE

Acquisition Astro Photography Tool
Guiding PHD2 Guiding
Processing PixInsight
Plugins RC Astro