Saturn / Tethys / Dione / Rhea (6 September 2021) (rdk_CA)

Contains: Solar system body or event

Saturn / Tethys / Dione / Rhea (6 September 2021)

Acquisition type: Lucky imaging

Saturn / Tethys / Dione / Rhea (6 September 2021)

Acquisition type: Lucky imaging

It has been quite a while since I've been able to post anything (unfortunately, too much going on at work!) I was able to analyze this data from back in September. This image depicts Saturn on the evening of September 6th, along with its moons (from left to right) Tethys, Dione, and Rhea. The red spot above Saturn is a 10th magnitude orange-red star in Capricornus (TYC 6339-0424-1).

The image is a composite of two different exposures (one for Saturn itself and one for its moons). I used a QHY 5iii 178C camera coupled with a IR cut filter, 2X Barlow, and atmospheric dispersion corrector. I think I managed to get the ADC tuned a bit better than I have in the past. I acquired a total of 11 videos (each approximately 120 s long), and stacked the best 40% of all frames (total of about 4400). These frames were de-rotated in WinJuPos.

In an effort to improve my skill level, I purchased a book on planetary imaging edited by Christope Pellier and colleagues (including several planetary experts throughout Europe). This book is really impressive -- I found the guidance in the articles quite rigorous and helpful. My execution of their recommended methods is certainly far from perfect, but at least for me, their book helped me to achieve one of my better images of this planet.

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Saturn / Tethys / Dione / Rhea (6 September 2021)

Saturn / Tethys / Dione / Rhea (6 September 2021)

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Saturn / Tethys / Dione / Rhea (6 September 2021)

Saturn / Tethys / Dione / Rhea (6 September 2021)

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