Jupiter 3 Mar 2019

[Sebbie]

Hi,

Took a tonne of Jupiter recordings last Monday morning in exceptionally good seeing conditions. Only just managed to process 400GB of avis.. long weekends do help here ;)

Attaching best three views showing Great Red Spot region and a planet facing hemisphere of a dim moon Callisto. Each is a 4 minute WinJUPOS composite.

Regards,
Seb

[foc]

Terrifically detailed Jupiter images Seb!
Nicely timed with the GRS

[geolindon]

Sebbie,
i really like the clarity and detail you have shown, including in the GRS and on Callisto.
also the 'clearing' of the Equatorial cloud is obvious;

In my 5 years of viewing I am used to seeing brownish bands either side of a white equatorial band.

The brown bands are warmer gases lower in the atmosphere, the white band is colder ammonia clouds above and hiding the brown.

By combining professional and amateur observations over 3 Jupiter years (about 36 Earth years) scientists have been able to recognise a regular change in Jupiter's bands. The pattern is a clearing of those white clouds each 6-7 Earth years - ea half Jupiter year - lasting 12 to 18 months. The clouds cleared in 1973, 1979, 1992, 1999 and 2006 but did not in 1985 and 2013.

You show they have cleared in 2019 :thumbsup:

Regards, L

[astronobob]

Nice going, Seb, Grouse colours and details ...