Contains:  Solar system body or event
Saturn and its moons in a 78-day period, Mohammad Ranjbaran

Saturn and its moons in a 78-day period

Acquisition type: Lucky imaging
Saturn and its moons in a 78-day period, Mohammad Ranjbaran

Saturn and its moons in a 78-day period

Acquisition type: Lucky imaging

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Description

This picture which shows the orbit of Saturn's Moons (i.e. Enceladus, Tethys, Dione, Rhea, Titan, and Iapetus), is a composite of 144 photos (72 for moons and 72 for Saturn itself).

Iapetus is the most important one. I was able to almost complete its orbit (period=79 days).

If you look carefully, you can see how its orbit is stretched with respect to other moons and how its brightness changes from the right side to the left one

I started from June 15th 2021 and finished on August 31st 2021.

Although I have missed  6 nights in the process, I am happy with the result.

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Histogram

Saturn and its moons in a 78-day period, Mohammad Ranjbaran