I need some help, as not well versed in astronomy. I want to compare the gravitational perturbations to earth's orbit that occur and repeat about every 60 years in sets of three, each separated from the other two by about 120 degrees in the heavens. I suspect that one of the three may be significantly stronger than the other two in each set of three and want to know if that is true. The reason I suspect this is shown in this graph: Please Register or Log in to view the hidden image! Green sin wave, curve (MDV) has period of ~61 years But unlike the earlier deceleration periods, the ST (man's GHG release) is now over powering the recently started cooling phase of the MDV to hold the temperature increase small. (After ~2004 - right edge of graph. See two graphs at end of this post with years separately given.)My concern is what happens when the next heating phase of the MDV is assisted by the increased release of GHG during the next decades, if the current trend for each decade to release more GHG than the prior one continues as I fear it will with China burning ever more coal and selling 20+ million cars now each year. I note that the average humidity is also increasing with the temperature and that less than an hour exposure to 35C wet bulb temperature is lethal to human just resting in a chair. Thus, I want to see if the MDV is, as authors suggest, due to the ~60 year period of Jupiter and Saturn's return to same location in the heavens. I. e. understand why there is not much 20 year sine wave needed too to reproduce 88% of the thermal record but need help understating the astronomical data tables below. I. e. Which parts of the data tables below goes where repeatedly as Kepler showed in 1606 via this drawing: Please Register or Log in to view the hidden image! and is one of the three locations in the heavens with much greater gravitational force on the sun (or Earth with its only one year averaging of that perturbation of its orbit) due to eccentricity of Jupiter's orbit? As Jupiter is both more massive and closer to the sun, Its gravitational force on the sun (or the earth) is greater, much greater, than Saturn's, so I would be happy if I could calculate their combined force on the sun when they are in conjunction. I think the first table below gives the data needed, but perhaps the second is more useful. I don't really understand this data. Both come from the same link as the quote. The Jupiter / Saturn conjunctions (in right ascension) in the last 60 year & before 2101 were: August 15, 1940 with Jupiter 1°15' north of Saturn 97.5° West Taurus October 11, 1940 with Jupiter 1°17' north of Saturn 155.0° West Taurus February 20, 1941 with Jupiter 1°21' north of Saturn 67.7° East Taurus February 18, 1961 with Jupiter 14' south of Saturn 34.6° West Capricorn January 14, 1981 with Jupiter 1°09' south of Saturn 103.9° West Libra February 19, 1981 with Jupiter 1°09' south of Saturn 141.2° West Libra July 30, 1981 with Jupiter 1°12' south of Saturn 57.9° East Libra May 31, 2000 with Jupiter 1°11' north of Saturn 16.9° West Taurus The following four are about 20 years apart as are the two above. Why none in 2020? Why are the first three above less than a year apart? November 5, 2040 with Jupiter 1°14' south of turn 24.8° West Libra April 10, 2060 with Jupiter 1°09' north of Saturn 39.8° East Gemini March 15, 2080 with Jupiter 6' north of Saturn 43.8° West Aquarius September 24, 2100 with Jupiter 1°18' south of Saturn 25.1° East Libra Jupiter / Saturn conjunctions (in ecliptical longitude) in the last 60 year & before 2101: August 8, 1940 with Jupiter 1°11' north of Saturn 90.9° West Taurus October 20, 1940 with Jupiter 1°14' north of Saturn 164.0° West Taurus February 15, 1941 with Jupiter 1°17' north of Saturn 72.9° East Taurus February 19, 1961 with Jupiter 14' south of Saturn 34.9° West Capricorn December 31, 1980with Jupiter 1°03' south of Saturn 90.9° West Libra March 4, 1981 with Jupiter 1°03' south of Saturn 155.9° West Libra July 24, 1981 with Jupiter 1°06' south of Saturn 63.8° East Libra May 28, 2000 with Jupiter 1°09' north of Saturn 14.9° West Taurus December 21, 2020 with Jupiter 6' south of Saturn 30.1° East Aquarius October 31, 2040 with Jupiter 1°08' south of Saturn 20.8° West Libra April 7, 2060 with Jupiter 1°07' north of Saturn 41.9° East Gemini March 15, 2080 with Jupiter 6' north of Saturn 43.5° West Gemini September 18, 2100 with Jupiter 1°13' south of Saturn 29.4° East Libra This source also did sort of Fourier analysis to find the frequency components of the temperature varialtion and did find both the 20 & 60 year periods: My worry is what happens after that (if their theories are correct) when the MDV starts into the next warming phase. Are most humans dead before 2060? Please Register or Log in to view the hidden image!