This is a composite of 5 images I have so far of the Trifid Nebula. I had originally posted one of these from the CDK17 and Microline 8300 but it wasn't the best presentation of this object. I thought I would combine the various efforts I have done on this object over 3 years or so from 2 different locations, with 2 different cameras (a 3rd one to come) and 4 different focal lengths - yikes! Thanks to Registar this possible.
This is 12.5 inch RCOS and STL11, TEC180 at F5.25 and F7 and FLI Microline 8300 and Planewave CDK17 at F4.45 and Microline 8300.
A total of 16 hours and 5 minutes.
I have now added some CDK17 and Proline 16803 data I will add to this so the total is now 22 hours and 55 minutes.
I think I still have some data left!
http://upload.pbase.com/gregbradley/...66046/original
Greg.