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Jupiter and Io 11-22-12 in Good Seeing

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#26 Hillbrad

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Posted 25 November 2012 - 02:12 AM

Thank you guys for your comments! I can only make do with what the atmosphere gives me...and seeing really did cooperate that night. When I get home tomorrow, I am going to process another one to see if it's any better. I also have some ganymede data to process.

Also I figured I'd ask here, but has anyone had any problems with dew inside their scts recently (on the inside of the corrector)? I've never had this problem before...but recently I've seen it twice. I use a homemade lymax cooler and I think it might be the culprit, but it works too well to give up. Any ideas for solutions?

#27 Hillbrad

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Posted 25 November 2012 - 02:19 AM

Glenn: Yeah I also considered the C14 small until this year! I still can't lift the ota yet, but thanks to my scopebuggy I don't need to!

Paul: Thanks for the words of wisdom...and I have to agree with you. This year will definitely end better then it started!

Pete: Glad I could help with you getting your wheelie bars. It's amazing how some simple tools like that can help us bring our scopes out much more often and easily. Hope to see some of your images soon!

#28 Kokatha man

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Posted 25 November 2012 - 03:13 AM

Thank you guys for your comments! I can only make do with what the atmosphere gives me...and seeing really did cooperate that night. When I get home tomorrow, I am going to process another one to see if it's any better. I also have some ganymede data to process.

Also I figured I'd ask here, but has anyone had any problems with dew inside their scts recently (on the inside of the corrector)? I've never had this problem before...but recently I've seen it twice. I use a homemade lymax cooler and I think it might be the culprit, but it works too well to give up. Any ideas for solutions?


Hi Brad - I have had condensation on the inside of the corrector once, and also thought it was on the inside quite a few times more than that..! :grin:

Remember that these scopes aren't airtight so what gets in can get out; on that occassion I left it outside uncovered and the day temp/warmth drove the moisture out of the tube and the problem didn't re-occur.....but indoors in a warmed room should be just as effective.

#29 Kokatha man

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Posted 25 November 2012 - 03:18 AM

ps: those times I "thought" it was on the inside were probably incorrect assumptions.....but it did take considerably longer to get the "frosted" appearance off of the c/p so maybe it really was on the inside - if that view was the actual case it must've meant the c/p was warmed enough to dissipate the water vapour inside. (they ain't real thick glass!)

Condensation allways occurs on the coldest parts which is why with the peltier cooling I had on the old C11, no condensation occured anywhere except on the rear casting behind the primary...

#30 Az Frank

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Posted 25 November 2012 - 03:30 PM

Man how did I miss this one! One oustanding image Brad! Has to be one of the best images I've seen this apparition! Glad to see you back on top of your game!

#31 astrovienna

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Posted 25 November 2012 - 06:22 PM

Also I figured I'd ask here, but has anyone had any problems with dew inside their scts recently (on the inside of the corrector)? I've never had this problem before...but recently I've seen it twice. I use a homemade lymax cooler and I think it might be the culprit, but it works too well to give up. Any ideas for solutions?


I got condensation all over the inside of a C11 once using my Lymax. In high humidity and dropping temps, I think this is a real risk. I don't think there's any way to avoid it - you just can't use it in those conditions. Since I'm permanently setup anyway, I haven't used the Lymax much since this happened.

Kevin

#32 bunyon

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Posted 25 November 2012 - 08:24 PM

Brad, to echo everyone else, amazing. I'm just in from a holiday trip and am blown away by this image.

I got condensation on the inside of my C8 a few times on really cold and humid nights (which is a fairly rare combination). I found a hair dryer would still take care of it, though it took longer and you don't really dry out the inside of the tube, so the dew comes back. I always just brought the OTA into a house - drier air - and then tried to keep it sealed as much as possible outside.

IOW, it's a pain and I don't think there are any quick fixes.


But, if you get images like this with humid air on the inside, I may add some drops of water to my OTA.

#33 Bill G.

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Posted 25 November 2012 - 09:39 PM

Brad,
Phenomenal image!! Really awesome detail!! Couple of questions?
1. Was this a composite? I don't see where IO transit and the GRS were in that position on Thanksgiving morning.....based on Jupiter 2 program...

I was out thanksgiving night and got a shot of the GRS.....but..not much of a morning person.

2. What camera did you actually shoot with?

I'm still using an old Toucam pro but getting that kind of detail on the Toucam is only a dream... at least for me. I'm looking to get something with better resolution. I haven't been doing any astrophotography for the last couple of years and now that I'm getting back into it, I would like to have something to get some better planetary shots. Detail like your shot is what I would like to be able to do so I'm really interested in what you are shooting with or any suggestions you might have.
Thanks,
Bill G.

#34 Hillbrad

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Posted 26 November 2012 - 01:53 AM

Thanks for the info on the dew guys. Yeah my biggest problem was just what to do once it already starts to dew up inside the ota. The hair dryer does get rid of it...but by the time the entire dew shield heats up enough to dry it off the thermal equilibrium seems to be shot for a long time. I think I will just monitor my cooler use on very damp nights and hopefully that will help.

Bill: Thanks for your words..glad you liked it. This shot was not a composite (well it actually was but only for the sake of processing) It was taken on the morning of thanksgiving...maybe you were checking on the morning after?
The camera I used was a flea3 mono camera. It has the same chip as the dmk618 mono camera...but with the large advantage in that you can capture at any framerate you like, not just 30fps or 60fps. Good luck and feel free to ask if you have any other questions!

#35 Hillbrad

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Posted 26 November 2012 - 01:59 AM

Here is an image of Ganymede I made the same morning. The seeing was still very good for this one. I am comparing it to an image I got from the NASA JPL site and then blurred to reach the same detail level. I think this is my best effort at moon detail yet. Notice the big dark patch at the bottom left of the disc which gives the disc a slight phase.

I made this using a blend of the green and blue channels. It was a 1.5x drizzle made using AS2!

It was taken on 11/22/12 at 8:48UT if you wanna see a higher res version of the jpl simulation.

JPL is on the left, my version is on the right.

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#36 Baron

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Posted 26 November 2012 - 02:45 AM

Spectacular!!

#37 Hillbrad

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Posted 26 November 2012 - 04:09 AM

And here is one more image in similar conditions. This one was taken about 45 minutes earlier, at 7:48UT.

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#38 martus

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Posted 26 November 2012 - 12:07 PM

Brad, it is best to Jupiter yaks I saw this forum !!

Regards,
martus

#39 Paco Yepes

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Posted 26 November 2012 - 03:51 PM

Impressive.
Congratulations on this very good decision

regards

#40 Bill G.

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Posted 26 November 2012 - 09:34 PM

Brad, Thanks for the info. It's been awhile since I've been doing any photography...or even observing. I saw the Flea 3 in your signature info...and had no clue what it was. Last time out before Thanksgiving night was about 3 years ago...I've been using a Toucam.
After seeing the astonishing image you got....time to upgrade!!

Hope you don't mind if I ask some questions if/when I do upgrade.

...as far as the Jupiter 2....looked again at the morning of the 22nd. Still don't see it. I must have something configured wrong...

Thanks,
Bill

#41 GreatGigInTheSky

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Posted 27 November 2012 - 01:04 AM

You've knocked it out of the park, Brad. Time to update your avatar!

#42 rumples riot

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Posted 27 November 2012 - 02:56 AM

Superb image Brad, love the fine detail and the lovely processing.

#43 mikotoy

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Posted 27 November 2012 - 03:20 AM

!^@$%&@^#$%

I was excited about the data I had captured earlier this evening until I saw this post.

The detail on Ganymede is amazing!

Thank you for sharing your amazing images and here's to your year ending off well. :bow:

-Hytham

#44 Dave Mitsky

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Posted 17 December 2012 - 01:24 PM

Incredible!

Dave Mitsky






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