Shaky Jupiter but a interesting NEB feature

[John]

I'm observing Jupiter at the moment. The seeing is not at all steady really but there is enough clarity to see the GRS is on the disk plus the main cloud belts. One thing that jumps out of the rather shimmery view is a large dark feature (major festoon perhaps ?) coming off the south edge of the NEB just to the N of the current GRS position. It looks to be on a similar scale to the GRS as a feature and is much more prominent than the usual festoons.

Anybody else seeing this ?

I wish it was steadier but I'm having to make the best of what I've got at the moment.

Hoping for better views of Saturn and Mars later.

[Special K]

Scope still cooling over here!  Sounds like an interesting variation though. 

[jock1958]

Good luck and hope the seeing improves, clouds have arrived over here ?

[MarsG76]

Imaine it's the genesis of a second GRS!!!! that would be AWESOME!!!!!! but I believe that what you saw was a barge... those are large, dark and as big or even bigger than the GRS.

 

[Sunshine]

15 minutes ago, John said:

Anybody else seeing this ?

I too saw what you saw, last night, GRS was dead centre and on the south side of the NEB i saw what looked like major festooning, 2 veils jutting down towards GRS, festoons looked much larger than usual.

[kerrylewis]

Botheration! Just got Jupiter in the finder and a great swathe of the grey stuff blotted it out! 

[John]

15 minutes ago, Sunshine said:

I too saw what you saw, last night, GRS was dead centre and on the south side of the NEB i saw what looked like major festooning, 2 veils jutting down towards GRS, festoons looked much larger than usual.

Sounds like what I've just been observing. It does not look like a barge to me (I've seen quite a few of those but not so many lately) but a prominent single or double festoon type feature might be spot on.

Jupiter has gone behind the house now so I'll see if any of the imagers pick this up. It might be around for a while and may well rotate around the disk at a different speed to the GRS so I'll look out for it again if I get another session tomorrow.

Thanks for the feedback folks

[Special K]

That’s great to get confirmation!  No use over here as the seeing was very poor.