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Yes, their historical account is essentially the same as in my 1995 book, which fortunately they do cite thoroughly — and brought up to date, of course. The idea that the GRS formed from a South Tropical Disturbance was also proposed in my book. What’s new, and very welcome, is that they have done computational simulations that show this to be physically plausible.
Fantastic to know that JUICE is on its way safely, even though it will require four flybys of Earth or Venus before it really heads for Jupiter!
Thanks for researching and posting this analysis. So from your charts (and exact dates that you have sent me), it appears that the recent opposition was the closest for 70 years due to a combination of the 60-year cycle in perihelion distance, and an ~86-year cycle in the time of Jupiter’s apparition in which perihelion occurs. The smallest perihelion distance in the present 60-year cycle was actually in 2010, but this occurred far from opposition (and similarly in 2070). In 2022/23, perihelion distance is about average, but it occurs closer to opposition than average. In 2129, a close perihelion will occur close to opposition, so the distance from Earth will be even less.
Hi Dave, I replied to your post yesterday but my comment has not appeared. So, to summarise briefly, the Jupiter Section uses amateur images intensively for the reports which I post on our Section web pages, and for pro-am collaborations. Plenty of info is on our Section web pages and in our annual reports in the October issues of the Journal. We don’t make a public global database of Jupiter images because there are other sites that do that already.
