M13 under a full moon - Astrophotography [First attempt]

Here is my first picutre of the Great globular Cluster in Hercule constellation taken last night.

 

The full moon was a bit disturbing and despite the polar alignement was not precisely made, I managed to get a result that I tought worst !

 

This image is made of 20 frames of 15 seconds each at ISO 1600 with a Canon T3i.

 

The telescope used is a 200/800 reflector (without coma corrector ^^)

 

 

20 x 15 secs (5 min) + 10 darks

ISO 1600

F/4

800 mm

Done