Seeing the importance of the planetary picture!

[astroavani]

This post aims to show that seeing is one of the most important things for planetary imaging with high resolution. 
3 photos of Saturn were made on 3 consecutive nights (S1, S2, S3) always on time 23:00 UT. 
In all the setup used was exactly the same: 
C14 Edge Telescope 
Qhy 5P II Color Camera 5Mp and 2.2 micron pixel 
Astronomik L filter 
Capture program EZ Planetary Qhy own because the camera does not rotate on the Fire Capture 
Stacking the AS!2 But paragraph of stacked frames varied. 
Processing using Registax 6, Photofiltre, Irfan and Fitswork 
Below the data capture each photo for analysis of colleagues.

photo S1 
Taken on July 19 at 23:00 UT 
Stack of 1367 frames 
Astronomical seeing: Idex 1: 3 Idex 2: 2 Resolution: 2.36 arc / sec 
Jet Stream: 32 m / s URL: 72%

S2 photo 
Taken on July 20 at 23:00 UT 
Stacking frames 1089 
Astronomical seeing: Idex 1: 4 Idex 2: 3 Resolution: 1.82 arc / sec 
Jet Stream: 22 m / s URL: 52%

photo S3 
Taken on July 21 at 23:00 UT 
Stack of 853 frames 
Astronomical seeing: Idex 1: 4 Idex 2: 3 Resolution: 1.71 arc / sec 
Jet Stream: 23 m / s URL: 70%

I know that the photos have their defects to that in none of them was seeing really good and also because the author has its shortcomings. It is also not work with scientific rigor and let colleagues analyze and interpret the data since my intention was summed up in only a good seeing evidence that is crucial to a successful outcome.
http://www.astrobin.com/full/108848/0/
Data obtained from the website Meteoblue may therefore have some incorrect prediction by the variability of parameters. 
http://www.meteoblue.com/en/brazil/weather-porto-alegre/seeing

[astroavani]

Lacked identification in photos this is the right image: http://www.astrobin.com/full/108848/B/

[Pete Presland]

fantastic images, there is now doubt the "seeing" conditions are the critical for getting the best out of your equipment, whatever you choose to use.

[bobmoss]

Nice illustration. How did you measure/estimate the seeing?

[astroavani]

Hello Bobmoss! 

There are several ways to make an assessment of seeing and with time you develop experience to learn how to interpret it. I always base myself in the tables provided by Damian Peach be like for my friend Ilídio Afonso to be in Portuguese. You can find information at the following link: 

http://www.parsec.net.br/seeing.html 

There is also a website called Meteoblue that provides an estimate of Astronomical Seeing for many different regions and can be found here: 

http://www.meteoblue.com/en/brazil/weather-porto-alegre/seeing 

I hope I have clarified your doubts! 

Avani.

[astroavani]

Good to see you here PetePresland! 

Well, actually we should choose the setup based on the seeing conditions, the problem is that most of us can not afford to own several different setups, but some things can be changed to improve the picture for example: 

If seeing is bad, we will use smaller aperture, more moderate increases and high rates of FPS, an IR Pass filter also falls well in this situation. 

If the seeing is good we can use larger opening with the biggest increase to increase the resolution, under FPS capture more detail and allow the IR filter fees may be waived. 

About as I only have a large aperture tele should prioritize smaller increases and higher rates of FPS so much that I have used very little of the 2X Powermate and I even sell 4X simply because it would be almost impossible to use it. 

Do not know if it was good that you asked because we already know of my great difficulty with English, but anything inquire again! 

Regards! 

Avani.

[bobmoss]

Hello Bobmoss! 

There are several ways to make an assessment of seeing and with time you develop experience to learn how to interpret it. I always base myself in the tables provided by Damian Peach be like for my friend Ilídio Afonso to be in Portuguese. You can find information at the following link: 

http://www.parsec.net.br/seeing.html

There is also a website called Meteoblue that provides an estimate of Astronomical Seeing for many different regions and can be found here: 

http://www.meteoblue.com/en/brazil/weather-porto-alegre/seeing

I hope I have clarified your doubts! 

Avani.

Thanks for that, very useful!

[Vox45]

Very useful post !

[michael.h.f.wilkinson]

Superb images!

[sloz1664]

Excellent Images Avani.

Steve

[simmo39]

Very nice. One day Ill get images like that, one day!