Messier 13 (the Hercules Cluster) -Over 100.000 stars whirls within the globular cluster M13. Located 25.000 light-years from Earth,is one of the brightest star clusters visible from the Northern Hemisphere .The cluster was discovered by Edmond Halley in 1714 and cataloged by Charles Messier in  1764 into his list of objects not to mistake for comets .

Equipment astrophotography :  optical tube- Astrotech RC 6 f/9 & Astro physics 0,67 x reducer .

                                                  camera-Atik 314L+ mono 

                                                  mount-Skywatcher HEQ5Pro guided with PHD 2 Guiding 

                                                  Guide camera-ZWO asi 120mm mono CMOS

                                                   guide scope- Skywtcher 70/500 mm

                                                   filters -Astronomik L , HA

                                                   exposures time- L-12x180sec  &  HA -29x180sec 

Location -Babadag -Romania  - ,,Scorpius Observatory " 8 april-2021 ,9 april-2021 .