Goodbye Active Regions

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Simon2940
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Goodbye Active Regions

Post by Simon2940 »

AR12818 & 12820 are about to ride off into the sunset. It's been one heck of a show this pass week or so with all the activity and solar flares!
01.jpg
01.jpg (582.99 KiB) Viewed 661 times
I made an animation of what will be the last time I will see this active region. No other activity is forecast as of yet, but there is more coming. A smaller AR is on its way to us and we should see it in a couple of days.

https://www.instagram.com/p/COTbVb-JJdu ... _copy_link


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Re: Goodbye Active Regions

Post by ffellah »

That is a fantastic animation, Simon ! I love it...

Franco :bow


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Re: Goodbye Active Regions

Post by marktownley »

That's a great image Simon!


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Re: Goodbye Active Regions

Post by MAURITS »

Beautiful Simon, here an invasion of clouds, so no imaging today ...


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Re: Goodbye Active Regions

Post by Montana »

Wow!! superb still and animation, are you sure you weren't in orbit?
:bow :hamster:

Alexandra


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Re: Goodbye Active Regions

Post by Fed »

Nice animation. I’m now following you on instagram. Keep them coming...

Thanks!!!

Btw, what scope are you using for these?


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Re: Goodbye Active Regions

Post by GreatAttractor »

That's a great image and animation. What setup do you use?


My software:
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Re: Goodbye Active Regions

Post by Carbon60 »

Excellent, Simon. Superb work and a lot of work!

Stu.


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Re: Goodbye Active Regions

Post by Simon2940 »

In this case, the Esprit 150 and a Daystar Gemini.

Seeing was around 4.5/5 but it didnt last as long as I hoped and I have slow moving high clouds that drifted in front twice.
GreatAttractor wrote: Sat May 01, 2021 5:04 pm That's a great image and animation. What setup do you use?


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Re: Goodbye Active Regions

Post by H-Alpha »

Simon your animation is fan_ta_sti_iiiiiic! :bow :bow

1) Can you please say something about the exposure/gain/number of frames and also processing to achieve these colors and results in general?

2) Is each frame composed by two photos of different light intensity to show both the surface activity and proms?

-->Just watched your YouTube tutorial (thanks!), so I suppose this is the way you capture and process your images. :-) However, the questions below remain...

3) When you say 142 'frames' you mean single frames or 142 video captures of many frames stacked that resulted in 142 frames of the animation?

4) Did you buy your Gemini Daystar just by internet and this turned to be a good one, or you had the opportunity to test it before?

5) How do you (and 'we' in general) know that "A smaller AR is on its way to us and we should see it in a couple of days"? Just because you estimated the time it will take to reappear after its previous 'disappearance' due to sun's rotation? And in that case how do we know it did not 'die' in the meanwhile?

All the best,
Alexandros


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Re: Goodbye Active Regions

Post by EGRAY_OBSERVATORY »

Hi Alexandros,
In answer to your question 5) - the attached Heliographic image from the Stereo satellite shows that anywhere between the green-vertical lines is what can be seen from Earth.

As the Sun's rotation is from East to West, then equally this image shows the rotation from Left to Right. Therefore areas to the East are marked as
" - " numbers/degrees.

Only up to around 3 or 4 days can be shown to the East of the "-90" line... That is also dependent on the time of year...

Terry
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Re: Goodbye Active Regions

Post by MapleRidge »

Excellent work Simon :bow

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Re: Goodbye Active Regions

Post by H-Alpha »

EGRAY_OBSERVATORY wrote: Sun May 02, 2021 10:20 am Hi Alexandros,
In answer to your question 5) - the attached Heliographic image from the Stereo satellite shows that anywhere between the green-vertical lines is what can be seen from Earth.

As the Sun's rotation is from East to West, then equally this image shows the rotation from Left to Right. Therefore areas to the East are marked as
" - " numbers/degrees.

Only up to around 3 or 4 days can be shown to the East of the "-90" line... That is also dependent on the time of year...

Terry
Thank you very much Terry for this!

So if I got it right, the active area that Simon said is coming is the one at about -91 to -93 now. isn't it?
Anyway, I will follow it the next days to better understand.
Thnaks once more. Very helpful!
All the best,
Alexandros


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Re: Goodbye Active Regions

Post by Ivan »

:movie Grandiose!
Difficult and challenging work.
This is an astronomical Oscar.
Your filter works fine.


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Re: Goodbye Active Regions

Post by EGRAY_OBSERVATORY »

That's correct Alexandros.

The website in use for the Heliographic is:-

https://www.spaceweatherlive.com/en/solar-activity.html and with other useful information too and is up to date/hours...

The originating NASA website is :- https://stereo-ssc.nascom.nasa.gov/beac ... cchi.shtml

Cheers
Terry


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Re: Goodbye Active Regions

Post by John »

Congrats on such beautiful animations,

John


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Re: Goodbye Active Regions

Post by DeepSolar64 »

Very nice work Simon. This is very normal for you! :bow


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Re: Goodbye Active Regions

Post by eroel »

Simon:
Superb images.
Best regards,
Eric.


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Re: Goodbye Active Regions

Post by Simon2940 »

1- In regards to settings, they differ from scope to scope so what works for me, doesnt mean it will work for you. Ive experimented for over 2 years to get the results I get, and i suggest you do the same. As a guide, i will say to keep gain below 139 for any ZWO camera as their "Unity Gain" is set at 139. I tend to stay near 110 give or take. As for duration, the honest answer is fast as possible while having a good histogram that reaches at least the 50% marker as a minimum. The reason is shoot as fast as possible is to limit any bad seeing. 20ms exposures is enough to show a small amount of blurred movement due to atmospherics, small vibrations etc.

2- I get this question constantly. I only capture 1 video file. I make sure that my histogram reaches 80% and always always shoot 16 bit. Any proms will actually still show up. The way I process is what makes both chrome and proms show up. I do NOT create a composite image.

3- 142 frames means 142 video files with 1000 frames per file, stacked at varying percentages ranging from 5% to 25% depending on how good/bad the data is.

4- I asked to be given one randomly and in the past, i had also used units that where returned. What i've found is that newer users do not play around with the Quark long enough to learn it. A huge factor is flats. If you dont take them, the images will have darker and lighter patches. If the Quark doesnt go on band, then thats a different story. You have to see other peoples RAW data to get an idea of what is on-band and what is off-band.

5- That's been explained already!

As a general side note - just because I get specific results with certain equipment, does not mean that you have to buy what I have to achieve desired results. I can tell you now, I use to own an Explore Scientific ED127 that made both my Esprit 100 & 150 look like junk because the star test on that scope was unreal. I really wish i never sold it. The new owner of it was initially disappointed because of the physical condition showed obvious signs of usage which they wanted money back. After I asked him to star test it, he changed his mind and said, your not getting this back. EVER!!

H-Alpha wrote: Sun May 02, 2021 12:23 am Simon your animation is fan_ta_sti_iiiiiic! :bow :bow

1) Can you please say something about the exposure/gain/number of frames and also processing to achieve these colors and results in general?

2) Is each frame composed by two photos of different light intensity to show both the surface activity and proms?

-->Just watched your YouTube tutorial (thanks!), so I suppose this is the way you capture and process your images. :-) However, the questions below remain...

3) When you say 142 'frames' you mean single frames or 142 video captures of many frames stacked that resulted in 142 frames of the animation?

4) Did you buy your Gemini Daystar just by internet and this turned to be a good one, or you had the opportunity to test it before?

5) How do you (and 'we' in general) know that "A smaller AR is on its way to us and we should see it in a couple of days"? Just because you estimated the time it will take to reappear after its previous 'disappearance' due to sun's rotation? And in that case how do we know it did not 'die' in the meanwhile?

All the best,
Alexandros


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Re: Goodbye Active Regions

Post by H-Alpha »

Thanks a lot for your time and all your detailed answers Simon!

All the best,
Alexandros


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