Images of M13 taken on the same night and with the same setup just double integration in the second series of the images

image taken with 5 min sub exposures and 5 images taken

image taken with 10 min sub exposures and 10 images taken

  The images are of really good quality with very sharp focusing. this was somewhat a surprise as the quality of the sky was very poor with high levels of moisture present. a zoomed region of the core shows the complexity as well as the colours of the different stars present.