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Jupiter 28 June 2019

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About this observation
Observer
Geof Lewis
Time of observation
28/07/2019 - 21:43
Object
Jupiter
Observing location
Norfolk
Equipment
C14 XLT
ASI120MM
Astronomic Type2 RGB filters
TV x2 Powermate
ADC
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This is the first of the stacked RGB runs used in the previously posted set of 3 images. Whilst the GRS was far from the CM, in line with the BAA challenge, I thought that I'd have a go at measuring the GRS. Using WinJupos to zoom the image, I used its position tool to measure L2 as 306.5 and 321.2 giving a diameter of 14.7 degrees. Using the provided conversion of 1,187 km/deg, I estimated the GRS length as 17,449km.

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