The problem with the data upload limit for attachments has been fixed. I have restored it to 30MegaBytes. A recent forum software upgrade was responsible for the changed limit. Please accept my apologies for missing this when upgrading the forum sofware, Mabula.
Mosaics of Large and Small Magellanic Clouds with 1365h total exposure time
We finished the processing of a very long project we had with our telescope installed in remote in Chile :
CIEL AUSTRAL team (JC Cannone, Nicolas Outters, Didier Chaplain, Philippe Bernhard, Laurent Bourgon), at Obstech (Observatorio El Sauce in Chile) presents you the result of 2 years of work :
4x4 mosaic of Large Magellan Cloud and 2x2 mosaic of Small Magellan Cloud in RGB and SHO
Large Magellan :
1060 Hrs of Frame (world record) : The Large Magellanic Cloud, Mosaic of 16 plans (4x4) , SHO & RGB versions, done with TEC160 with Moravian CCD camera G4-16000 on Paramount MX+ in Obstech - Observatorio El Sauce in Chile, record during 2 x 5 months between Oct 2017 & Feb 2019
Full (14000 x 14000 pixels, 80 Mb) & info : http://www.cielaustr...rie/photo95.htm
Small Magellan :
305 Hrs of Frame : The Small Magellanic Cloud, Mosaic of 4 plans (2x2), SHO and RGB versions, done with TEC160 with Moravian CCD camera G4-16000 on Paramount MX+ in Obstech - Observatorio El Sauce in Chile
full (7600 x 7600 pixels) & info : http://www.cielaustr...rie/photo96.htm
All these images have been processed with PixInsight, Astro Pixel Processor, Photoshop.
PS : APP was really the best to align each stacked preprocessed field which was fast even for 64 images (16 fields of RGB (already combined R+G+B) + S2 + Ha + O3. Assembly was not good because of uncorrected gradient or bad LNC correction. In fact, this mosaic would have been impossible to assemble without APP.
I got JAVA errors when assembling (I didn't take time to study) but it seems APP looks for master when normalize processus and my image are fully preprocessed. So I stopped to alignment. When I align only 1 field (for exemple Ha), it works without errors. Maybe this is the combinaison of RGB and monochrome images ?
Anyway, many thanks to Mabula !
Philippe Bernhard (for Ciel Austral Team)