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Old 17-12-2004, 01:30 PM
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iceman (Mike)
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Saturn early this morning - 17/12/2004

Hi guys.

As I said in a thread elsewhere, it was a beautiful clear calm early morning so Saturn was my target to try and get some value out of this darn ToUcam

It didn't take quite so long to get things on track this morning, i'm getting the hang of aligning it with the 2x barlow in, getting focus etc. I still don't like it, but it's not soooo frustrating anymore.

At the moment i'm not using the blueish IR filter I got with the ToUcam because, well, it makes things blue. I don't like it, i'm going to ring Matt and see if I can return it and look at buying one that doesn't make things blue.

Focusing with the hartman mask on one of the gemini twins is still a bit of a chore because i've got to try and get it done within the 10 seconds it's in the FOV, and every time I turn the focus knob the whole image (and OTA) shakes about. That moonlite focuser is looking really good right now

Seeing was pretty good, the raw videos showed the cassini division more often than not, though i'm still trying to come to terms with what settings to use and what type of stacked results the different settings produce.

I combined the short videos into a longer video so that I had on average, 500-800 frames to try and stack. I ended up playing around with registax most of the day today, trying to find the best settings to use, the best frame to select as the alignment, etc. Man it's a steep learning curve.

Even though the cassini division is visible in most of them, when too many frames were stacked, the seeing or wobbling affected the final stacked image and I ended up with a wobbly cassini division again, like I did in my earlier attempts a few weeks ago.

I found that if I was very selective about what frames to stack, and only stacked 8-10 in some instances, I was able to get a nice clear cassini division that didn't veer off at a right angle But of course with so few frames, there's a lot of noise and not much banding on the planet.

Anyway here's a composite of the post-processing efforts today. The small b/w ones are at f/5, the next size up at f/10 (2x barlow) and the couple of bigger ones were done using 1.3x Mitchell resampling just for kicks. The ones with wobbly cassini's had ~100-200 frames stacked.

Appreciate your thoughts or suggestions or advice, and/or which one out of the below you like best

Thanks

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  #2  
Old 17-12-2004, 01:42 PM
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[1ponders] (Paul)
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Good on you Ice, with the equipment your using (ie dob mount) I'm impressed.

It can't be easy doing this sort of shooting manually. Especially when its a case of "Oh! Quick its clear! . Quick. Where is everything? Sorry Kids, Dads gotta go ". I'll be back in a minute Luv "


And with all this "here" stuff to work on. And still get time to process it.: How do you do it

What are you buying your wife for xmas?

Keep up the good work

Paul

PS When do you sleep?:zzz2
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  #3  
Old 17-12-2004, 01:47 PM
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iceman (Mike)
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Paul nice work making use of the smilies

I had time to process these today because i'm on a PeopleSoft course, sitting up in the back corner with the laptop and not really paying attention to what's being said up the front

I can sleep when i'm dead I only got about 3.5 - 4 hours sleep last night.. sometimes you just have to make sacrifices
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Old 17-12-2004, 02:06 PM
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[1ponders] (Paul)
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I know what you mean. Sometimes work has to take a backseat

My family hasn't worked out what's hit them yet. There's not been enough clear skies . But now I'm on six weeks holidays I don't have to sleep.

The best part is, my kids are heading of to their mums for 2 weeks, and my wife works 4 nights a week till 9:30. Yeahaa!! I'm a happy man!

What would be a good sacrifice to the Gods of Astronomy. I've already given them all my money

Keep it up Ice.

Paul
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  #5  
Old 17-12-2004, 02:37 PM
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ving (David)
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http://www.click-smilies.de/sammlung...smiley-020.gif

well done you computer whiz! http://www.click-smilies.de/sammlung...smiley-024.gif

those are great picshttp://www.click-smilies.de/sammlung...smiley-005.gif, just wish i'd been awake when saturn was up higherhttp://www.click-smilies.de/sammlung...smiley-009.gif.

matbe on saturday at my mates place I'll get some good viewing in but he is the early to bed type so i dont know reallyhttp://www.click-smilies.de/sammlung...smiley-017.gif. maybe i'll keep him awake till 3am http://www.click-smilies.de/sammlung...smiley-006.gif.

.... or maybe we'll just till we http://www.click-smilies.de/sammlung...smiley-011.gif
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  #6  
Old 17-12-2004, 02:47 PM
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[1ponders] (Paul)
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Man I want those smilies.

Where did you get them ving

Paul
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  #7  
Old 17-12-2004, 04:14 PM
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ving (David)
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i could tell you but then i'd have to kill you http://www.click-smilies.de/sammlung...smiley-022.gif

you could right click the smilie and go to properties or just go to:
http://www.click-smilies.de
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  #8  
Old 17-12-2004, 05:14 PM
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[1ponders] (Paul)
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Thanks ving
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  #9  
Old 20-12-2004, 12:27 AM
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great latest effort Mike, fantastic for non guided. Everytime you go out to image the shots get better.

Paul
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