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Jupiter- GRS continues to show interesting developments

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About this observation
Observer
Paul G. Abel
Time of observation
08/06/2019 - 22:32
Equipment
508mm Planewave Dall-Kirkham
x173
Filters: W15 and W80A
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Hi all,
Here  are two drawings of Jupiter made last night with Dr Hugh Sasse using the University of Leicester Observatory.  Conditions were quite poor initially but improved a little as Jupiter gained a little altitude.  A number of points to note:
  • Both the SSTB and STB seem to have little distinguishing features at this latitude.
  • GRS region continues to show developments- it now seems that the brown collar surrounding the spot is starting to encroach on it.  The RSH seems distinctly yellowish in colour.
  • EZ yellowish and a number of bluish festoons present.
  • NEB very active- particularly along the northern edge.  It seems that an oval type structure has developed in the NEBn at the same sort of longitude as the GRS.
  • NTB and NNTB showed little details.
We also examined the planet with a W15 and W80A filter- the contrast of the dark components of the SEB, NEB and GRS were markedly increased.
Best wishes,
-Paul

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