Thank you for explaining so well!! I loved this🥰👏🏼

Thank you 🙏 very much for this nice explanation. The theory is quite complicated, but is very interesting by using potential theory, despite that most of the results in the Earth and Moon are very tiny!!!

Great work, Sir!

The best explanation ever! ❤️

Thank you very much for the explanation

The best

Thank you, thank you so much.

And just to be clear, a full cycle will continue to circle across the ecliptic, ending where where the next cycle will begin? Thank you very much for the explanation.

Hi. This is a very good explanation around regression of Lunar Nodes. Hoping that you can help me understand the concept better, I have a few questions. 01) In the video, it is explained that the Lunar nodes intersect the ecliptic at different points, moving westwards in 18.6 Years. Does this also represent Saros Cycle? If not, what exactly would Saros cycle mean? Is it only a calculation for Eclipse cycles to repeat? 02) I have also read that the moon's orbital plane rotates by 360 degrees in 8.85 years (Apsidal Precession). How does this work in combination with lunar nodes, as the lunar nodes are created where the orbital plane intersects with the Ecliptic. Many thanks in advance. Regards, Neeraj Kumar Bangalore, India

Can anyone please tell me the technical term for the two points on the moon's orbit at which it reaches it's maximum/minimum declination. Another way to word it would be: the two points that are midway between the ascending and descending nodes. I have searched far and wide and have asked several astronomy forums and have yet to find anyone who knows this.

fine, but why not say what a node is, for those who don't know, namely, the points where the orbit of the moon crosses the ecliptic?

@whatabouttheearth

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Sebastian Verney the orbit of the moon is not flat like this: 🌙---🌎---🌙 it is at an angle, one side goes above the equator and one side goes below...... The descending node ☋ (tail of the dragon) is when it passes the ecliptic going downward... The ascending node ☊ (head of the dragon) is when it passes the ecliptic going upward... the nodes are not the highest and lowest points, they are the transition points between upper to lower, and lower to upper.