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Old 08-11-2018, 11:46 PM
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multiweb (Marc)
ze frogginator

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Join Date: Oct 2007
Location: Sydney
Posts: 22,062
Achernar single 3min exposure LUM QHY9 guided and very heavily strecthed. Pretty happy with the stars in the field at that FL. Image scale is 0.42asp and fov 24' x 18' . The double diffraction spike tells me what I already knew when I checked visually, the secondary is not quite centered and the spider vanes are not exactly square. When I get the TAK collimation scope I'll be able to tweak that and recollimate. I reckon the scope will perform exceptionally well once I get it right. The FL on this shot is 2.6m.

Added 7x2min so 14min LUM on the trap uncalibrated. Limiting factor is going to be my guiding. But exciting times ahead. I have now a scope I can't even get the best out of yet. Very sharp and such a nice flat field compared to the C11. It gathers less light but the quality of the data can't compare off axis.
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Last edited by multiweb; 09-11-2018 at 09:16 AM.
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