Messier 14 (Ophiuchus)

Object: Constellation: Coordinates: Size: Brightness:
Messier 14
(NGC 6402)
Oph 17h38m / -0315' 11' 8.32mag

The globular cluster Messier 14 (NGC 6402) in the constellation Ophiuchus on May 21, 2020. Messier 14 contains several hundred thousand stars and is 28,000-56,000 light-years from Earth. It is noticeably reddened by interstellar extinction (dust). The globular cluster was discovered by French astronomer Charles Messier in 1764 (source: Wikipedia).

Twenty 3 minute exposures at ISO 800 were added for this shot with the DeepSkyStacker software (resulting in a 1 hour 2 minute exposure) and the final image processing was done in Photoshop.
Equipment: Canon EOS 450D Baader modified camera, TeleVue Paracorr Type II coma corrector, 16" f/4.5 "Ninja" dobsonian telescope riding on a dual-axis Tom Osypowski equatorial platform, Lacerta MGEN autoguider, Lacerta off axis system (field of view comparison: image of the moon with the same equipment).

Search chart for Messier 14. Map © 2020 "The Mag-7 Star Atlas Project", Map is slightly modified. The map can be downloaded here .