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.
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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).
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