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Old 21-07-2017, 07:53 PM
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Atmos (Colin)
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Join Date: Aug 2011
Location: Melbourne
Posts: 7,013
WIP Sigma Art Mosaic

Taken last night at Heathcote, had a lot of issues to begin with like my mount not wanting to play nice! After I figured out that I just had to tune my motors it was smooth sailing in that respect, oh the noise my mount was making early on!

After that was issues with getting my laptop to talk to my camera, SGP would but MaximDL wouldn't. Struggling to get an accurate polar alignment, pretty sure that is because there is flexure somewhere with my adhoc mounting technique (several ADM plates attached together so that I could balance). Anyway, got it all running with a poor PA which definitely shows in the point accuracy. Clearly see which panels were shot on the opposite side of the meridian

Currently imaging the whole region again using another laptop and it is working good. Transparency is beyond shocking however so I think I may just end up ditching the whole night anyway. Right now I am struggling to see the fifth star in Crux Think it may get worse as the night goes on so I'll just play it by ear.

This current shot has been calibrated and kinda processed. Haven't done any gradient removal yet and some have clearly been affected by a light leak through the rear view finder.
Supposed to be a 36 panel mosaic (6x6) but is missing two panels entirely due to passing thick high level clouds. This was just a quick mashup (two hours) to see what I had to work with and how good/bad the pointing ended up being.

Each panel consists of:
3x180s
ISO400
F/2.8

Currently doesn't look like it'll be finishable this new moon period due to weather (it is a MAYBE on tonight) so fingers crossed that it'll improve at some point before Sagittarius disappears for another year.
Attached Thumbnails
Click for full-size image (Milky Way Test IIS.jpg)
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Click for full-size image (Testing.jpg)
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Last edited by Atmos; 24-07-2017 at 10:52 PM.
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