Thursday, 16 September 2021

The Great Red Spot 2021

 

The Great Red Spot visible on Jupiter's Disc. 127mm Meade Apo Refractor, x3 Barlow and QHY5L-11 colour camera. 3 minute video clip stacked. Credit Pip Stakkert.



JunoCam on the JUNO Spacecraft: Image processing from RAW download by Pip Stakkert .   Credit for data NASA, JPL, SwRI. 
Mission Phase: PERIJOVE SwRI/35 2021-07-21 08:44 UT



" Our images of Jupiter captured on the 8th of September 2021 show the Great Red Spot, an enormous anticyclone, looking paler and smaller than in previous years. When we look at Jupiter through a telescope we see the turbulent weather systems and clouds reflecting sunlight which takes approximately 77 minutes for the round trip. The cloud systems are in constant movement driven by internal heat and the energy imparted by the planet's high rate of spin. Amongst this metrological chaos the red spot has remained a constant feature. In the last few years the GRS has grown smaller and paler. At the same time, large white ovals or spots have appeared in and around the South Equatorial Belt. Interaction with the white ovals appears to have resulted in the GRS becoming paler and smaller." - Kurt Thrust current Director of the Jodrell Plank Observatory.

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