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Neptune and spots

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#1 Marc Delcroix

Marc Delcroix

    Viking 1

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Posted 03 December 2019 - 04:55 PM

Hello,

Since a few months, some activity is observed on Neptune. HST could image it clearly:
http://www.astrosurf...763anim_HST.gif

http://www.astrosurf..._MAP_legend.png

I analyzed all amateur images and a few from pros, and calculated ephemeris of two possible persitant spots seen by amateurs. These ephemeris are far from being confirmed, and if they were the corresponding spots could be not active anymore. Anyway please find them there, I will update them if I can get some other relevant measures:
http://www.astrosurf...2019/ephemeris/

 

Anyway, in case your are lucky enough to get a clear sky (here I get either clouds or fog), and a correct seeing, observe Neptune, and send me your images (delcroix dot marc at free dot fr), they can be extremly useful !

Steady skies,


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#2 happylimpet

happylimpet

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Posted 08 December 2019 - 04:01 PM

Hi Marc,

 

I got some decent images in decent seeing a month or so back - didnt really finish procesing them as there were no obvious features. I know I should, and will share them when I do! A negative result is important too....

 

Cheers

 

Nick


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#3 Marc Delcroix

Marc Delcroix

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Posted 12 December 2019 - 05:49 PM

Meanwhile I got another observation on dec. 4th of the South tropical spot I suspect, I updated the ephemeris accordingly.


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