Messier 2 - Globular Cluster

[jsmoraes]

GSO 305 mm - Canon T3 - 4 x 45 seg (3 min) - ISO 1600 - OAG - Skyglow filter - Coma corrector

 

 

[Maximidius]

Good job, and keep it up. I like the detail that you have resolved in the cluster and the fact that the core is not burned out.  

[jsmoraes]

Thank you Maximidius. Globular clusters are very difficult to capture because of brightness of core. I do my best to adjust ISO and time of exposition to don't blow up the core. I like to see the stars inside of cluster. This cluster seems to be more than a 2D circle. It shows some 3D ball-llike appearance. He is a very nice and beautiful cluster.

I would like to have some tool to show the medium separation of those stars. 150 thousands stars in a diameter around 175 light years. Only for curiosity. To have an idea of the separation and compare with the distance  of our Proxima - Centaurus. We see the stars very together, but maybe they are more distant than our nearest star. Actually I have no idea how much they are.