[3] Reddish oval BA & NEB & NNTB (report, 2006 Feb.25)
Chris
Go has pointed out that oval BA now appears quite reddish.
Attached are his and other images showing this. As Christophe Pellier has
suggested, the colour is presumably due to the same short-wave-absorbing haze
that gives the colour to the Great Red Spot (and to Little Red Spots in the NNTZ),
as these are all stable anticyclones.
As
oval BA is the only remaining great oval in the South Temperate region, it will
indeed be interesting to see if it becomes permanently reddish.
Also
in these images, note reddish colour in the NEB (a late effect of the NEB
expansion event in 2004) and the NNTB (unusually strong for this belt; only in
this longitude sector).
John
Rogers
2006
Feb.25
PS:
For a complete set of images documenting the reddening of oval BA, go to Chris
Go's special web page: