Jupiter at opposition 2017 - Revisited

Jupiter at opposition 2017 - Revisited

Jupiter with moons Io, Europa, and Ganymede (L to R) from Austin, Texas 2017-04-07 10:25 PM CDT. Questar 1350/89 mm telescope with a Dakin 2X Barlow lens and ZWO ASI120MC planetary video camera. Gain 46, exposed 77 msec captured in oaCapture running on macOS. Best 52 of 2000 exposures stacked at 1.5x in the amazing Autostakkert 2 and deconvolved in Lynkeos. RGB aligned to reduce atmospheric diffraction. Final crop and exposure tweaks in Photoshop.

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Date Taken: 2017-04-07
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Flickr:Allan Cobb

Well done Rob! I just obtained a ASI120MC myself and want to give it a shot on my Q3.5 (a 1965 model) when the skies cooperate. I see you used a separate Barlow lens as opposed to the built-in Barlow in the Q, would the built-in suffice (my Barlow has 2.18x magnification)? Also, is there a PC equivalent to Lynkeos? I have Sharpcapture and just downloaded Registax 6 on a Windows Vista laptop. By the way, I'm "ETXer" on Cloudy Nights. :) ... did you mount the camera in the normal eyepiece holder or behind the scope at prime focus? Thanks again, Allan

Flickr:Rob Pettengill

I use the axial mount at the rear of the telescope for imaging. Lynkeos is only on the Mac, but any astro imaging software with a deconvolution or wavelet based sharpening will substitute well. Autostakkert can do sharpening, but I get better results with more control elsewhere.

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