18th September 2021
- Montana
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18th September 2021
Lots of proms in this emerging active region in the south east this morning. The visual view was breath-taking.
Problem was the clouds it was clear blue sky when I was setting up and by the time I was ready it was thick cloud. It seemed to be very high rolling fog. It would then clear again just as fast, then roll in again. I managed about 3 panels of a full disc, then had to stop for ages, then another 3 panels and so on. Hence the full disc is cobbled together over an hour or so. Taken with the Solarscope DSF100 (which was actually behaving for the first time all year) and the Grasshopper 3. For more detail click through to Flickr and use the magnifier, the proms are lovely in the prom enhanced disc.
2021-09-18 Halpha Sun f colour by Alexandra Hart, on Flickr
2021-09-18 Halpha Sun surface by Alexandra Hart, on Flickr
2021-09-18 Halpha Sun proms by Alexandra Hart, on Flickr
I have taken some prom close ups but I am processing these now, not sure they will be OK. I was messing with gamma to try and get the faint threads to show through.
Alexandra
Problem was the clouds it was clear blue sky when I was setting up and by the time I was ready it was thick cloud. It seemed to be very high rolling fog. It would then clear again just as fast, then roll in again. I managed about 3 panels of a full disc, then had to stop for ages, then another 3 panels and so on. Hence the full disc is cobbled together over an hour or so. Taken with the Solarscope DSF100 (which was actually behaving for the first time all year) and the Grasshopper 3. For more detail click through to Flickr and use the magnifier, the proms are lovely in the prom enhanced disc.
2021-09-18 Halpha Sun f colour by Alexandra Hart, on Flickr
2021-09-18 Halpha Sun surface by Alexandra Hart, on Flickr
2021-09-18 Halpha Sun proms by Alexandra Hart, on Flickr
I have taken some prom close ups but I am processing these now, not sure they will be OK. I was messing with gamma to try and get the faint threads to show through.
Alexandra
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Re: 18th September 2021
WooHoo!!! Nice Job Alexandra. Absolutely detailed and beautiful. You got the filaments much better than I can see them visually and more of them too. I can also see the disturbances too in your images. The proms on the SE limb came out well too.
James.
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Re: 18th September 2021
The disks are beautiful, Alexandra, and the proms are too ! Glad you Solarscope is behaving.
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Re: 18th September 2021
You brought those filaments out nicely!
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Re: 18th September 2021
Absolutely stunning, Alexandra. There’s such wonderful detail when you drill down in Flickr.
Great to see the big gun up and running again.
Stu.
Great to see the big gun up and running again.
Stu.
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Re: 18th September 2021
Very nice shots indeed ALexandra. You conditions sounded exactly the same as mine, i'd set up the DS90 but the gaps were just too fleeting for any proper imaging. In the end I just left the scope setup and grabbed visuals instead. Some sun is better than none!
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Re: 18th September 2021
Wonderful results Alexandra. Well done!
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Re: 18th September 2021
Bravo! Great job, FD's are amazingly detailed. The close-up is perfect in my opinion, this is one of the best proms I have seen at this scale.
Ivan
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Re: 18th September 2021
Bravo! Great job, FD's are amazingly detailed. The close-up is perfect in my opinion, this is one of the best proms I have seen at this scale.
Ivan
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Re: 18th September 2021
Amazing FD Alexandra!
Fantastic details!
It was really worthy to keep trying to complete the entire disk.
How have you processed your image? Once for the disk and then separately for the proms? (eventually composing two processed images?)
And as far as I understand the solarscope is a H-alpha filter (you have won a contest with it in the past!!!). What scope did you use?
Best wishes,
Alexandros
Fantastic details!
It was really worthy to keep trying to complete the entire disk.
How have you processed your image? Once for the disk and then separately for the proms? (eventually composing two processed images?)
And as far as I understand the solarscope is a H-alpha filter (you have won a contest with it in the past!!!). What scope did you use?
Best wishes,
Alexandros
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Re: 18th September 2021
marktownley wrote: ↑Sun Sep 19, 2021 6:48 am Very nice shots indeed ALexandra. You conditions sounded exactly the same as mine, i'd set up the DS90 but the gaps were just too fleeting for any proper imaging. In the end I just left the scope setup and grabbed visuals instead. Some sun is better than none!
Visual is good too!! It’s faster in fleeting conditions, at least for me.
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Astro-Tech AT72EDII with Altair solar wedge
Celestron NexStar 102GT with Altair solar wedge
Losmandy AZ8 Alt/Az Mount
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Re: 18th September 2021
Thanks Alexandros, yes a Solarscope DSF100 and I use it on my TEC140. The full disc is 6 images zipped together with Photoshop Photomerge. The disc and proms are together as one shot, it is much easier to do this with a doublestack as opposed to a single stack.
I have processed another this morning, the evolution of the prom region:
2021-09-18 South east prominence by Alexandra Hart, on Flickr
Alexandra
I have processed another this morning, the evolution of the prom region:
2021-09-18 South east prominence by Alexandra Hart, on Flickr
Alexandra
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Re: 18th September 2021
Sounds like very challenging conditions, but you managed to beat the clouds Alexandra! Persistence pays off!
Best regards,
Arne
Best regards,
Arne
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Re: 18th September 2021
Thanks a lot Alexandra.Montana wrote: ↑Sun Sep 19, 2021 12:41 pm Thanks Alexandros, yes a Solarscope DSF100 and I use it on my TEC140. The full disc is 6 images zipped together with Photoshop Photomerge. The disc and proms are together as one shot, it is much easier to do this with a doublestack as opposed to a single stack.
Alexandra
These proms have amazing details!!!! I love them!
Only with a 140mm? Native or with Barlow or is the DSF that adds magnification?
And with DS you can make both proms and disk appear with ImPPG without the annoying burned white (or black if inversed) sun's edge?
Best wishes,
Alexandros
Last edited by H-Alpha on Sun Sep 19, 2021 7:12 pm, edited 1 time in total.
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Re: 18th September 2021
Weren’t those proms a thrill to see! Love your images. I caught them from 10:15-11 UT so great to see what you saw just beforehand!
- Montana
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Re: 18th September 2021
Thanks Alexandros, the Solarscope is a fixed 100mm front etalon, so even on the TEC140 it remains a 100mm aperture. I used a 1.6x Barlow for the proms and over exposed them so that I could see the fine threadlike field lines. But, yes, with the doublestack the dynamic range between surface and prom is less so you can image both together as in the first post.
Alexandra
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Re: 18th September 2021
Alexandra:
Super FD´s and all the images posted, you got the proms beautifully.
Best wishes and thanks for sharing them.
Eric.
Super FD´s and all the images posted, you got the proms beautifully.
Best wishes and thanks for sharing them.
Eric.
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Re: 18th September 2021
Nice addition! It's dynamic plasma!
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Re: 18th September 2021
fantastic prom images Alexandra, love the fine detail
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Re: 18th September 2021
Hi, Alexandra
It’s good to see you posting again. I especially like the last images showing so much activity. I only managed one usable image on Sunday due to poor seeing.
I can relate to “ it was clear when I set up but then . . .”
It has clouded over so often after seeing a sunny sky that I’ve set up further south in my yard to give me an extra early hour with a good sky. I have my large tripod and mount set up under an all weather cover topped with an inverted white garbage container over the mount. This set up has reduced my workload and has survived a few heavy rain showers.
Lou
It’s good to see you posting again. I especially like the last images showing so much activity. I only managed one usable image on Sunday due to poor seeing.
I can relate to “ it was clear when I set up but then . . .”
It has clouded over so often after seeing a sunny sky that I’ve set up further south in my yard to give me an extra early hour with a good sky. I have my large tripod and mount set up under an all weather cover topped with an inverted white garbage container over the mount. This set up has reduced my workload and has survived a few heavy rain showers.
Lou