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Advice on Jupiter and Saturn

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16 replies to this topic

#1 GKA

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Posted 14 October 2021 - 03:37 AM

Me and a friend took these pictures 10.12 using an Meade LX200 ACF 16", and even though we struggeled with the focus i felt we got it pretty good in the end.

There are definatly som details to be seen , but they are blurry.

 

The conditions were so so , but i was hoping for more , but i'm a newbie at this ,so?

Both Jupiter and Saturn are low  on my location in the south of Norway (58 N - 07E).

 

Jupiter is 15 000 frames stacked , and the video was about 2 minutes long , which i have read is the max, length you can have on jupiter.

Det biggest picture is 15% used and the smaller one is 5% used.

 

Saturn is 20 000 frames stacked and both pictures is 5% used.

I was using Zwo asi 224 , Zwo ADC and Sharpcap pro.

 

For editing , i used Pipp , Autostakkert3 , Registax6 and Gimp.

They are heavily edited.

 

So what is causing the blurryness , is it the conditions , focus issues , lenght of the video (to long)? or maybe a combination ?

16" is a big telescope , so bad conditions may even get worse in it , i did not check collimation.

 

This telescope is not mine , it belongs to my astronomy club .

 

I'd like some help and advice from you all on what i can expect , and if there is something i can do diffrent.

I also tryed Winjupos , but it got even worse.

I do have the stackings if someone likes to try.

Attached Thumbnails

  • Jupiter Meade 15%.jpg
  • Jupiter Meade 5%.jpg
  • Saturn Meade 5%.jpg
  • Saturn Meade 5% (2).jpg

Edited by GKA, 14 October 2021 - 03:39 AM.

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#2 Vega700

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Posted 14 October 2021 - 04:12 AM

Hi looks like collimation is out, that's the first thing to check. 


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#3 Borodog

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Posted 14 October 2021 - 07:54 AM

Yes, star test the collimation. And work on practicing the focus.



#4 GKA

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Posted 14 October 2021 - 12:48 PM

Yes, star test the collimation. And work on practicing the focus.

We will definatly test the collimation ,but i will also practice the focusing part , although it seemed ok , but there was some turbulence also.

#5 GKA

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Posted 14 October 2021 - 12:49 PM

Hi looks like collimation is out, that's the first thing to check.

We will check it out as soon as the weather permits , thanks for your quick reply.

#6 Kiwi Paul

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Posted 14 October 2021 - 02:25 PM

Hi there. If you put some data somewhere, I would love to have a how a go at it. I have lots of time while my back is healing.
Cheers Paul
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#7 GKA

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Posted 14 October 2021 - 04:23 PM

Hi there. If you put some data somewhere, I would love to have a how a go at it. I have lots of time while my back is healing.
Cheers Paul

Here's something for you Paul , hope it helps with your back.

One Avi file  and two stackings ready for registax6 , i have more if interested.

 

https://www.dropbox....LtsBrWcxfa?dl=0

 

https://www.dropbox....pGlZda-0wa?dl=0

 

https://www.dropbox....1908_3.avi?dl=0


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#8 Tim J Fowler

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Posted 15 October 2021 - 04:20 AM

Hi there. If you put some data somewhere, I would love to have a how a go at it. I have lots of time while my back is healing.
Cheers Paul


Hope you have a speedy recovery, Paul.
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#9 Borodog

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Posted 15 October 2021 - 08:21 AM

Hope you have a speedy recovery, Paul.

Seconded.


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#10 RedLionNJ

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Posted 15 October 2021 - 08:37 AM

 

Jupiter is 15 000 frames stacked , and the video was about 2 minutes long , which i have read is the max, length you can have on jupiter.

Det biggest picture is 15% used and the smaller one is 5% used.

 

Saturn is 20 000 frames stacked and both pictures is 5% used.

I was using Zwo asi 224 , Zwo ADC and Sharpcap pro.

 

For editing , i used Pipp , Autostakkert3 , Registax6 and Gimp.

They are heavily edited.

I see a contradiction here. You say Jupiter was 15000 frames stacked, then you mention percentages later. Both statements cannot be correct.  Same for Saturn.

 

 

For what reason did you use PIPP? It's a very powerful app, but incorrectly used, it can do more harm than good.

 

 

Just given the overall appearance, I would blame the majority of the disappointment on the seeing. While a correctly-tuned ADC can remove the bulk of the dispersion, it can't do anything for the effects of imaging through far more atmosphere than you would have if you imaged overhead. Neither planet is particularly favorable for northern temperate imagers.

 

One more - what is the focusing mechanism on the scope you used? Is it just the Meade stock focus knob (which moves the primary) or is there a Crayford-style, hands-off focuser (even the Meade Microfocuser) installed?



#11 Borodog

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Posted 15 October 2021 - 08:54 AM

Here's something for you Paul , hope it helps with your back.

One Avi file  and two stackings ready for registax6 , i have more if interested.

 

https://www.dropbox....LtsBrWcxfa?dl=0

 

https://www.dropbox....pGlZda-0wa?dl=0

 

https://www.dropbox....1908_3.avi?dl=0

I downloaded your AVI and stacked it. It seems to be definitely out of focus.

 

 


Edited by Borodog, 15 October 2021 - 09:17 AM.


#12 GKA

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Posted 15 October 2021 - 08:59 AM

I see a contradiction here. You say Jupiter was 15000 frames stacked, then you mention percentages later. Both statements cannot be correct.  Same for Saturn.

 

 

For what reason did you use PIPP? It's a very powerful app, but incorrectly used, it can do more harm than good.

 

 

Just given the overall appearance, I would blame the majority of the disappointment on the seeing. While a correctly-tuned ADC can remove the bulk of the dispersion, it can't do anything for the effects of imaging through far more atmosphere than you would have if you imaged overhead. Neither planet is particularly favorable for northern temperate imagers.

 

One more - what is the focusing mechanism on the scope you used? Is it just the Meade stock focus knob (which moves the primary) or is there a Crayford-style, hands-off focuser (even the Meade Microfocuser) installed?

Sorry , i took a video that was 15000 frames(jupiter)and used 5% of these in registax6.

Maybe i couldn't have used Pipp but i'm still experimenting/lesning , i will try without , but i dont think it will get better.

I belive it's ither the focusing or collimaction,  maybe Even both.

And yes , it is the original focuser , but we have a simple motor driven to , but not sure how good it is.This was the first time i use the scope.


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#13 Borodog

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Posted 15 October 2021 - 09:19 AM

gallery_346195_16468_10903.png

 

Edit: Not sure why CN is blowing this up like this. It's only 639 pixels across.


Edited by Borodog, 15 October 2021 - 09:22 AM.

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#14 GKA

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Posted 15 October 2021 - 04:11 PM

Did a New one without Pipp, think it got a bit better , but still unsharpreceived_578474980132293.jpeg .


Edited by GKA, 15 October 2021 - 04:55 PM.


#15 Kiwi Paul

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Posted 15 October 2021 - 04:37 PM

Tim and Borodog, many thanks for your good wishes.
Paul

#16 Kiwi Paul

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Posted 15 October 2021 - 10:44 PM

Hi Giel,

 

I have sent you some images and a pm reply but thought I would put the product of your avi here

 

2021-10-12-1908_3_lapl5_ap39_Jupiter_1000fr.jpg

 

I have used 1000 frames (top 6.6%) out of a total of 15109 frames. I agree with Borodog that your problem may be focus or both Seeing and focus. More details in pm.

 

I think the last frame you posted is over processed.

 

Cheers Paul



#17 GKA

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Posted Yesterday, 02:40 AM

Thanks a lot for trying out my data , to both you and Borodog, and thank you very much for the explanations , and screenshots you sent me , they will help me a lot to improve on my editing.👍


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