Jupiter + Ganymede Europa Io 16th Dec. 2012

[asimov]

Seeing was ok but still fairly turbulent due to a gusty low alt. breeze. Ended up having to lose the dew shield because of it's extra wind catchment area.

The moons were not in the same FOV as Jupiter, so I've added them in to the final.

This is the first time I felt it was ok to jump up to F30 this season. I also used the Atmospheric dispersion corrector, mainly for the moons.

C11/DBK618

[Saturn%5]

As always very nice mate :thumbsup:

[iceman]

Nice work Asi! Love the browns.

[lepton3]

Excellent images Asimov, both Jupiter and the moons. Very nice at this image scale.

-Ivan

[samilag]

Very very nice picture with excellent colours also the moons are very nice

Giuseppe

[asimov]

Thanks all! Appreciate the comments.

Mike, I think the overall brown hue/colours came from the rather low transparency on this night (Rum factory 'cross the road spewing out 'stuff'). Had to use maxed out gain for this reason, especially at F30.

[RickS]

Very nice! Nice to see hints of detail on the moons.

[DavidNg]

Excellent works again

[John K]

Sweet image Asi! heaps of details especially on the moons!!

[icytailmark]

how do u get such clear images every single time john? whats the secret?

[Quark]

A most impressive image Asi, excellent detail and nice smooth look.

Regards
Trevor

[asimov]

Thanks guys.

I'm not one to keep any secrets in this game Mark, quite the opposite in fact.

There are a few golden rules that I adhere to but I think most know about them..

1 - Have that scope collimated to the best of your ability.

2 - The scope must be left out to cool, & the longer the better before imaging.

3 - Everything like cameras/barlows/extensions/FW's should also be left out to cool.

4 - I've got my mount permanently on a concrete slab, but I tarp the whole slab, mount included. Heat from concrete slabs while imaging is a killer. I'll usually hose the slab down as well several times before imaging. Lawn is very good to setup on but I haven't got that luxury at my place. Wouldn't hurt to tarp a 3 or 4M section around a mount even on lawn in summer..

5 - Spend plenty of time getting optimum focus, but do it at 2X your FL via zoom in your capture program, with the laptop screen some 4 or 5 ft away..

6 - Don't shoot at big FL's that the seeing just doesn't support. I understand the idea of oversampling & filling chips/pixels etc. but there's a limit & the seeing on each given night is lord & master here.

[asimov]

Thought I would have a go at reprocessing, as I didn't really like the colour balance of the original.

[Rigel003]

Great image, Asi. You're pulling a lot of detail out despite the low altitude this apparition. Terrific comparison of the moons and I like the low tech slab tarp insulator. Good idea.

[asimov]

Thanks Graeme, & long time no see mate.

Yeah you know me - low tech where I can get away with it lol! The main thing is it's a help.

[Shiraz]

Ripper image Asi - top shelf. regards Ray

[Paul Haese]

Well done Jon. This is the first apparition I have not imaged Jupiter since 2004 but I am glad to see you getting some nice data. I would think this data could stand up to some winjupos derotation. You might be surprised how much of a difference you can achieve. Take a look at some of Chris Go's recent work.

[Poita]

I have to say a big thanks to John for consistently being the most open and helpful person on IIS when it comes to processing planetary images and how to best capture them.

And a huge thanks for the images posted, I always enjoy the views.

[asimov]

Funny you say that Paul. I decided to check my 3 min AVI's for smear again yesterday, I split a few in halves & ran the halves through Autostakkert but the smeared 3 min final still won out because of the amount of frames stacked. Need a camera with twice the framerate of the DBK now plus as you say, learn WinJupos..

Thanks for that Peter:thumbsup:

[Fairlane]

Awesome pic! Some really talented people on this forum!

[asimov]

Hi Rob, & welcome to IIS:thumbsup:

Thanks for that.