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Io animation and Ganymede fun

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#1 Hillbrad

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Posted 08 December 2012 - 12:01 PM

I finally got around to making this animation from the good seeing a couple weeks ago. It is really cool to see Io and its shadow as they approach the GRS. It's also interesting to watch Io's albedo stay pretty constant as the seeing was very good that night. This was taken on 11-22-12 between 7:48 and 8:31UT in red light. Thanks for looking!

Click below to see it:

IO ANIMATION

#2 Rankinstudio

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Posted 08 December 2012 - 12:19 PM

That is awesome.

#3 shawnhar

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Posted 08 December 2012 - 01:57 PM

Very cool, looks like the old Voyager images, amazing how far we've come with ground based amatuer equipment.

#4 Sunspot

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Posted 08 December 2012 - 01:58 PM

Almost Voyager like! Awesome.

Paul

#5 ToxMan

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Posted 08 December 2012 - 05:12 PM

Wonderful animation, Brad. Did you use C14, 2x barlow...etc? We have similar setups. Is your C14 an HD Edge or an older OTA? Thanks,

Paul

#6 Kokatha man

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Posted 08 December 2012 - 07:33 PM

Brilliant Brad....! :applause: :applause: :applause:

It almost looks like a WinJupos "animation" but then I wouldn't have thought Io would appear to move relative to the Jovian background as it does..?!? :question: :confused:

#7 DesertRat

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Posted 08 December 2012 - 08:32 PM

Very nice Brad! Very cool to watch, well done!

Glenn

#8 Hillbrad

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Posted 08 December 2012 - 09:02 PM

Thanks guys!

Darryl: Nope this was an "old fashioned" animation...just a compilation of 6 frames. The seeing was very consistent that night, which is probably why it might seem a bit winjupos looking.

Paul: Yeah this was done with my normal setup. The C14 and flea3 through the 2x celestron ultima barlow...it was around F29. My OTA is the grey tube C14..non edge.

#9 Hillbrad

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Posted 08 December 2012 - 09:05 PM

And in the spirit of moon processing...I decided to revist my best two Ganymede captures from last season. I think my newer processing of moon data helped to bring out some more of the detail.

This first one was from last 7-27-11 at 9:29UT. Composite of red and green light. Again mine is on the right, the nasa jpl simulation is on the left.

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#10 Hillbrad

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Posted 08 December 2012 - 09:11 PM

And here was one more capture from 9-22-11 at 9:59ut. Notice the same bright crater (Tros I think) as in the above capture, but it is shifted a bit.

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#11 edsplace

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Posted 08 December 2012 - 09:21 PM

Brad, maybe you can image eruptions in the surface of IO.

#12 old_frankland

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Posted 08 December 2012 - 10:44 PM

This is so awesome!

One thing, though, for me the see-saw animations are confusing. I wasn't certain whether Io was suppose to be chasing its shadow until I looked again at the date. A subjective thing, but that's my respectful slant on it.

Resolution is mind boggling....indeed, very Voyager like!

#13 Hillbrad

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Posted 08 December 2012 - 10:55 PM

ha thanks Ed. Let's get some time imaging at Palomar and maybe we can capture some eruptions.

Jim: Thanks for the input. Here's another version without the back and forth effect.

IO ANIMATION

#14 lcd1080

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Posted 08 December 2012 - 11:01 PM

Brad you keep improving upon your own previous best efforts; your representation of Io is better than any ground-based telescope image I have seen; it is world-class by any measure.

Pete

#15 old_frankland

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Posted 08 December 2012 - 11:08 PM

ha thanks Ed. Let's get some time imaging at Palomar and maybe we can capture some eruptions.

Jim: Thanks for the input. Here's another version without the back and forth effect.

IO ANIMATION


Sweet! Thanks.

#16 tjensen

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Posted 08 December 2012 - 11:53 PM

That is soooooo Cooooooool!

#17 GreatGigInTheSky

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Posted 09 December 2012 - 02:23 AM

... being able to identify through your image an individual crater on Ganymede... mindblowing! Truly amazing work there, Brad.

#18 Kecktastic

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Posted 09 December 2012 - 05:01 AM

Terrific animation Brad, looks very effective.

Regards
Trevor

#19 BKBrown

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Posted 09 December 2012 - 05:18 AM

Brilliant work Brad! You are on a smokin' hot roll right now, please keep it coming!

Clear Skies,
Brian :waytogo:

#20 Az Frank

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Posted 09 December 2012 - 03:01 PM

Such great detail on the animation Brad ,you can actually see the shadow change shape as it passes over the clouds. Amazing!

#21 idealistic

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Posted 09 December 2012 - 10:02 PM

Thats awesome. Very impressive.

#22 AlanL

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Posted 09 December 2012 - 11:25 PM

Really amazing stuff. I noticed there is a slight halo around Io's shadow. I've seen this in other images and wonder if it's real or an artifact.

#23 karlo

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Posted 10 December 2012 - 04:31 AM

very nice indeed !!!

#24 MvZ

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Posted 10 December 2012 - 05:06 AM

Excellent stuff Brad, keep it coming.

You should make an animation of Ganymede, showing the rotation, and also to get a better understanding of the noise levels in the image.

I noticed the second image of Ganymede had a dark ring on the right side, which is a typical diffraction/sharpening artifact for such small targets. Did you process that out in the first image, or how do you deal with this? Did you use the same sharpening methods?

AlanL, the halo is an artifact. Sharpening tends to overshoot these light/dark divisions, but it is also a bit related to diffraction artifacts. A bit of both.

#25 Hillbrad

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Posted 14 December 2012 - 08:43 PM

Sorry for the late reply Emil...but yeah there does seem to be a typical sharpening artifact on that second image. I didn't process out any artifacts for any of the moon images..trying to preserve any detail that could correlate to the simulated image. I suspect I just got too heavy handed on the wavelets on the second one. They were the same sharpening methods for both images, just probably had better data on the first.

If I get some more time I'll try to make that animation...could be interesting.






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