Jupiter & Saturn Dec 13th

[Quark (Trevor)]

Hi All,

Imaged Jupiter last night in poor seeing but have some detail and structure in the SEB revival. Have posted 1 RGB & IR data set, the seeing was crook bordering on bloody crook.

Hit the deck to get organized for Saturn at 3 am CSST, unfortunately the seeing was very similar as for Jupiter but as it is my first Saturn for the season I have posted 1 RGB & IR data set. Hope to image the new storm tomorrow morning depending on the weather.

Thanks for looking
Regards
Trevor

[mswhin63 (Malcolm)]

Lovely image even in poor seeing, I also took some shots but the seeing was even poorer, Fine focus just wobbling everywhere.

[jenchris (Jennifer)]

Lovely job

[michaellxv (Michael)]

The IR looks good on Saturn. Brings some good detail.

[Shiraz (Ray)]

Hi Trevor. Fantastic Jupiter for the conditions. One often reads that a bigger scope will suffer excessively in poor conditions - looks like that's a bit of a myth - your images hold together very well.
And its great to see Saturn again.

[John Hothersall]

I have to agree the Saturn IR shows very good degree of banding considering position.

John.

[bird (Anthony Wesley)]

Thanks Trev, a very good set of images there considering the conditions!

cheers, Bird

[PN PM]

Thanks for those. Nice to see the rings are back!

[Paul Haese]

Nice work Trevor, I knew it would not be long before you got started on Saturn. I am still hanging out to get a final SEB revival image.

Originally Posted by Shiraz

One often reads that a bigger scope will suffer excessively in poor conditions - looks like that's a bit of a myth

Yes that is utter nonsense. Large scopes frequently are not at true ambient and are displaying boundary layer movment above the primary. That means that large scopes are accused of not performing well in poor seeing. Cooling a large mirror to ambient usually ensures that this problem disappears and the larger aperture will perform as good as smaller units if not better.

[Ryo (Fabrizio)]

Good work Trevor.Mi wondering why you and another member of this forum have written on my topic of Jupiter to be amazed by the performance of my Meade. Is it bad optics Meade?

[jjjnettie (Jeanette)]

Thanks for posting Trev. Shame about the seeing. But at least you had clear skies.

[Quark (Trevor)]

Originally Posted by mswhin63

Lovely image even in poor seeing, I also took some shots but the seeing was even poorer, Fine focus just wobbling everywhere.

Thanks Malcolm

Originally Posted by jjjnettie

Thanks for posting Trev. Shame about the seeing. But at least you had clear skies.

Thanks Jeanette, yep, reckon no cloud or holes in the cloud, even in poor seeing is still a step up from not being able to see anything.

Originally Posted by Ryo

Good work Trevor.Mi wondering why you and another member of this forum have written on my topic of Jupiter to be amazed by the performance of my Meade. Is it bad optics Meade?

Thanks Fabrizio, far and away the majority of planetary imagers around the world use Celestron scopes, that said, my venerable old Meade Starfinder does a good job and it is about 17 yrs old. My comment on your thread related to the fact that your images are the first I have seen on any forum taken with a Meade that was fitted out with the ACF optical system and they were very nice images, indeed.

Originally Posted by Paul Haese

Nice work Trevor, I knew it would not be long before you got started on Saturn. I am still hanging out to get a final SEB revival image.



Yes that is utter nonsense. Large scopes frequently are not at true ambient and are displaying boundary layer movment above the primary. That means that large scopes are accused of not performing well in poor seeing. Cooling a large mirror to ambient usually ensures that this problem disappears and the larger aperture will perform as good as smaller units if not better.

Thanks Paul, its really great to get re-acquainted with Saturn, my favorite planet and what a bonus to have a new and incredibly bright SED's related storm for Christmas. Hope you get a chance to do the SEB revival soon.

Originally Posted by PN PM

Thanks for those. Nice to see the rings are back!

Thanks PN, yes the rings are back and beginning to open again.

Originally Posted by bird

Thanks Trev, a very good set of images there considering the conditions!

cheers, Bird

Thanks Bird.

Originally Posted by John Hothersall

I have to agree the Saturn IR shows very good degree of banding considering position.

John.

Thanks John.

Originally Posted by Shiraz

Hi Trevor. Fantastic Jupiter for the conditions. One often reads that a bigger scope will suffer excessively in poor conditions - looks like that's a bit of a myth - your images hold together very well.
And its great to see Saturn again.

Thanks Ray, as Paul has already mentioned, there is a lot of misinformation out there about larger scopes. A peltier is an absolute must for planetary imaging, many bigger production scopes suffer from very poor design, from an engineering perspective and then there is collimation which I believe is one subject that is misunderstood or poorly understood by many.

Originally Posted by michaellxv

The IR looks good on Saturn. Brings some good detail.

Thanks Michaell.

Originally Posted by jenchris

Lovely job

Thanks Jennifer.