SBIG ST10 E  LRGB Image with CFW8
L=2m 2xBin, R,G,B=1m
T1T 1.2m Cassegrain Telescope with the 0.5x CaF2 Focal Reducer
5100mm
CFW8 Filter
Blind guiding without any autoguider !!!
4-lens Reducer with CaF2-element
2.5 arc seconds
deconvolution, DDP
for Trebur conditions above average transparency, daybreak
Philipp Keller, Christian Fuchs and the T1T-Team

This 140 light years diameter cluster is in a distance of 25.000 light years and contains about 100.000 stars. We made this 2m exposure in the morning just before daybreak when only mag 3 stars could be seen in the dark-blue sky. Of course this has to be re-done.

The extreme tracking performance of this telescope allowed to track the telescope blind without any tracking corrections for 2m integration times. After a better polar alignment maybe 10m will be possible.