Dear all, it was a while I have been away from this forum, quite busy with my work and with my wedding
Eventually I found the time to process a new images taken with the new OTA I installed last February in my observatory in Coona, my trusty TEC APO 140.
I had a lot of issues to proper set up the new imaging train, most of the frames I took had problems of star trails. Eventually I found the culprit to be a counterweight I installed around the OTA to better balance the camera, counterweight that was producing a small bending of the tube enough to produce oval stars. Now it is fixed, pity that me and Peter Starr, the guy that hosts my observatory and support me on the field, spent several months before finding out the real reason.
Here is the first image with the new setup. I chose a popular subject, NGC 6188 in ARA, fascinated by its dark lanes and the faint OIII bubble surrounding the nearby NGC6164. This is a classical HaOIII RGB composition with a total exposure of more than 17 hours. Here is the link:
http://www.glitteringlights.com/Imag..._fck28cW-X3-LB
A zoomify version up to full resolution / full screen is accessible from the link above. Despite the long exposure, I found the shell of NGC6188 very difficult to image and, overall, this field is quite a challenge because of the huge amount of stars present that suffocate a bit the nebulae. I hope you will like it.
Clear Skies
Marco