New Red Spot |
New Red Spot |
Guest_Sunspot_* |
Mar 3 2006, 06:56 PM
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Feb 18 2007, 11:21 PM
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Founder Group: Chairman Posts: 14434 Joined: 8-February 04 Member No.: 1 |
John is the BAA's Jupiter Section director - and I saw a great talk by him a while back where he suggested that the current GRS might not be the one that is supposed to have been visible for so long - but is actually the second GRS since recorded observations of Jupiter begun hundreds of years ago.
Also - the current spot is 'speeding up'. In 1950 it was rotating in around 10 to 12 days. Now it's more like 4 - 6 days - but at the same time it's getting smaller so one can't assume it's getting faster as a result Observations of Jupiter are one of the great amateur projects still ongoing. Doug |
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