Saturn 26th vgood seeing - Page 3

iceman (Mike) · #41 31-01-2011, 05:57 AM

This is now IOTW.

Quark (Trevor) · #42 31-01-2011, 10:21 AM

Congratulations on IOTW John, truly a stunning image.

Cheers
Trevor

Shiraz (Ray) · #43 31-01-2011, 10:28 AM

Very well deserved IOTW - congratulations John. Regards

John Hothersall · #44 31-01-2011, 07:36 PM

Thanks Mike for IOTW I am really flattered and it certainly spurs me on although the vgood seeing seems to have gone for now but Saturn will remain for a couple of months with more opportunities especially with IR filter is quite exciting and that storm is unprecedented.

I have learned so much from this forum since contributing last Winter, the imaging standard here at IIS seems much higher than other forums and have received great advice from Bird and Trevor with my new Flea3.

Thanks again for comments, John.

SkyViking (Rolf) · #45 31-01-2011, 08:13 PM

Congratulations on the IOTW John, well deserved indeed, that image is just stunning

KenGee · #46 31-01-2011, 09:36 PM

Well done John great image.

paulF (Paul) · #47 31-01-2011, 10:51 PM

Wow Wow and Woooooow
Mad shots and a beautiful thread !Was really interesting reading all the educated opinions of the big guns on the forum

Cheers

Ric · #48 31-01-2011, 11:36 PM

Congrats John

they are awesome images and animation.

Cheers

Emil (Emil) · #49 01-02-2011, 01:37 AM

This is just unbelievably good, awesome results!

Quark (Trevor)
In 2010 I also made several animations that show dark spots in the B-rings that I believed were spokes. It's difficult to say with absolute certainty, but for what it's worth (which might very well be nothing hehe) I'm about 99.9% convinced that the effects in those 2010 animations are real and not artefacts. I know how I processed those images, and animations do show a lot more than just still frames. If it was only a single image with a dark spot, then I would agree it is probably an artefact. But when you see the dark feature move around in subsequent stacks, then it is most likely something real.

You do need a steady seeing to show these kinds of features, and you have to process each of the stacks in exactly the same way. And you have to build animations to be (much more) sure, but then I think a lot more people can capture the spokes (when they are there!).

http://www.astrokraai.nl/getimage.php?id=310
http://www.astrokraai.nl/dump/201004...Saturn_RGB.gif

As you can see the effects are MUCH dimmer than in these images, but I haven't found a better explanation of what the dark spots are in the rings other than spokes.

John Hothersall · #50 01-02-2011, 02:47 AM

Yes Emil I took a look at you CN animation rocking back and forth, dust spokes on the right B ring clearly seen and Brian Combs animation shows spokes too. I think between us its confirmed, don't know if this is unusually high contrast dust not normally seen we are just lucky to get. As rings open up over next few years this sight may be common for amatures to image with newer cameras coming online.

John.

Emil (Emil) · #51 01-02-2011, 02:56 AM

By the way, if the spokes are somehow related to the large storms on Saturn, there also was one large year when I made those recordings. It wasn't as huge as the one currently messing with Saturn though.

But you can't really do statistics on such a small sample size of course

skies2clear · #52 01-02-2011, 11:52 AM

Truly incredible images.

I noticed in the animations, the motion reverses half way through. Excuse this question coming from a complete amateur, but is there a reason why this is done? At least that is the way it looks to me anyway.

Clear skies

erick (Eric) · #53 01-02-2011, 04:20 PM

Congratulations, John! Great work!!

John Hothersall · #54 02-02-2011, 02:09 AM

Thanks again everyone.

Quote:

Originally Posted by skies2clear

Truly incredible images.

I noticed in the animations, the motion reverses half way through. Excuse this question coming from a complete amateur, but is there a reason why this is done? At least that is the way it looks to me anyway.

Clear skies

I created an animation that goes forward and then back to beginning making for a smooth movement rocking back and forth without jumping when it repeats so detail can be seen better.

John.

skies2clear · #55 02-02-2011, 02:59 PM

Thanks John, it certainly has that advantage.

seeker372011 (Narayan) · #56 02-02-2011, 10:04 PM

stunning work..hope it makes APOD

bkm2304 (Richard Brown) · #57 03-02-2011, 09:50 PM

Timothy Ferris wrote "Seeing In The Dark" in 2002. He talks about the visual observer, American, Stephen O'Meara who reported spoke structures in Saturn in the 1970's. He also discusses Eugene Antoniadi who reported similar structures in the 19th century. O'Meara was poo poohed and his observations were rejected for publication. He was justified in 1979 by the Voager images. See Ferris' Book published by Simon Schuster ISBN 0 - 684 - 86580 - 7.

Richard