Sunshine! tinkering with the C11 24/06/2020

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Sunshine! tinkering with the C11 24/06/2020

Post by Montana »

Today is glorious sunshine and so is tomorrow so I have taken two half days off work to do solar in the morning. I started imaging with the C11 / Aries ERF and the PST mod and ASI174 by 8am. I think it was all over at 8.30am. Seeing was beautifully calm and steady today although I think my images were better last time, I think I have over processed these. Still not happy about how off band they are but there is nothing I can do, only the very bottom left hand corner out of the whole ASI chip is on band, it makes my Quark seem like a diamond gem and I got rid of that! :?

ImageSun_070838_24_06_2020 f colour by Alexandra Hart, on Flickr

ImageSun_070838_24_06_2020 by Alexandra Hart, on Flickr

ImageSun_071103_24_06_2020_f colour by Alexandra Hart, on Flickr

ImageSun_071103_24_06_2020_ by Alexandra Hart, on Flickr

and with the Solarscope and Grasshopper 3 the blankest disc in the universe, not even a prom!

Image2020-06-24 Halpha Solar disc f colour by Alexandra Hart, on Flickr

Image2020-06-24 Halpha Solar disc by Alexandra Hart, on Flickr

but a very unusual alignment of mottles to make a long Y

ImageSun_084305_24_06_2020 by Alexandra Hart, on Flickr

I'll try again tomorrow :)
Alexandra


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Re: Sunshine! tinkering with the C11 24/06/2020

Post by dhkaiser »

You may think the images are sub, I think they look great! Interesting mottling.


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Re: Sunshine! tinkering with the C11 24/06/2020

Post by JochenM »

Looks good to me, Alexandra.

And in absense of any activity; the sun's subliminal messages will have to do ;)


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Re: Sunshine! tinkering with the C11 24/06/2020

Post by eroel »

Alexandra, a very nice and waited session on a blank Sun.
Trying even without the results one expects, gives you more experience in your setups and workflows.
Best regards and keep safe, BTW, yesterday we had a good earthquake, imagen with the Pandemia and taking out of hospitals all the sick people. It was 7.7 at the epicenter 500 Km away, but it felt strong at the city.
I was at the home observatory waiting for the Sun to show behind clouds, when the sirens and alarms started announcing the quake, so I went down to our reunion place for these occasions and waited for a minute or so to start oscillating,(the lamps at my home started swinging around up to 30°to each side).
Later when finished had to go up to the observatory to close down, it started raining, so no Sun. :(
Eric.
Last edited by eroel on Wed Jun 24, 2020 7:31 pm, edited 1 time in total.


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Re: Sunshine! tinkering with the C11 24/06/2020

Post by ffellah »

Nice work with the C11, Alexandra. The close ups are nice and fluffy, but with good resolution. The disks are pretty.

Glad you had some time with the sun.

Franco :band


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Re: Sunshine! tinkering with the C11 24/06/2020

Post by oreoluna »

Montana wrote: Wed Jun 24, 2020 2:44 pm
but a very unusual alignment of mottles to make a long Y
Very interesting phenomenon! :bow
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Re: Sunshine! tinkering with the C11 24/06/2020

Post by David_The_Bears_Fan »

Might not be much going on but these are still awesome images!


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Re: Sunshine! tinkering with the C11 24/06/2020

Post by DeepSolar64 »

Very nice work Alexandra. I often see shapes in the spicule mottling too. They certainly are not always even. But I guess if they were they would be no mottling at all. Just an even fuzzy coat of spicules. And they show up in all of their furriness in your close-ups!


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Re: Sunshine! tinkering with the C11 24/06/2020

Post by solarnoob »

Very nice pictures!
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Re: Sunshine! tinkering with the C11 24/06/2020

Post by Rusted »

Interesting images. :bow

These linear features seem to be a more common feature of large image scale and resolution. Seeing permitting!
Using the 2.6x GPC on my 150/10 & '174 I have recently noted paler, raised "ridges" stretching up to 1/8 of the diameter of the sun.
More commonly seen near the limb. As if their height was exaggerated by the perspective of curvature.
Nested triangles were visible in the SE quadrant in late improved seeing a couple of days ago. It was eerily artificial.
Unfortunately I lose the sun by 7pm to the local trees so must miss a couple of hours of evening seeing.
Valery's suggestion for observing and imaging early and late is sound advice. Though local seeing can vary wildly.


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Re: Sunshine! tinkering with the C11 24/06/2020

Post by Carbon60 »

It's amazing to see such large scale features, Alexandra. I always wonder if these are just a consequence of random processes (they just happen to look aligned/structured), or if there's something more to it.

Your Ha FDs always look amazing with the Solarscope. Beautiful.

Your C11 images are showing lots of lovely texture.

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Re: Sunshine! tinkering with the C11 24/06/2020

Post by Derek Klepp »

Alexandra as I haven,t viewed any of your images for a while all I can say is WOW I am impressed with that C11 result.As for that feature I vaguely remember seeing something like that many years ago.
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Re: Sunshine! tinkering with the C11 24/06/2020

Post by Montana »

Thanks everyone, more tinkering today :hamster:

Alexandra


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Re: Sunshine! tinkering with the C11 24/06/2020

Post by marktownley »

Super images Alexandra! Give that other PST etalon a twist, warm weather like this it will unscrew easier than you think ;) Sounds like your good seeing window is about the same as mine.


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Re: Sunshine! tinkering with the C11 24/06/2020

Post by Carbon60 »

Montana wrote: Thu Jun 25, 2020 10:21 am Thanks everyone, more tinkering today :hamster:

Alexandra
Hi Alexandra,
Did you try this etalon back on the PST body to check that it wasn’t damaged during deconstruction?

Stu.


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Re: Sunshine! tinkering with the C11 24/06/2020

Post by marktownley »

Carbon60 wrote: Fri Jun 26, 2020 6:23 am
Montana wrote: Thu Jun 25, 2020 10:21 am Thanks everyone, more tinkering today :hamster:

Alexandra
Hi Alexandra,
Did you try this etalon back on the PST body to check that it wasn’t damaged during deconstruction?

Stu.
I think it will be a usual case of variability of quality of etalons. Some are excellent, some are good, some are not. The original one is excellent, this more leans more to good. Unfortunately we're experienced in the world of solar and the foibles and idiosyncrasies of individual etalons are more apparent and our demands are higher :D


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Re: Sunshine! tinkering with the C11 24/06/2020

Post by Montana »

Thanks guys :)

No I haven't checked the PST yet Stuart, it would involve going in the loft to find the body and at the moment our house seems to be infested with terrible spiders with very long legs, I am in a state of fear and frayed nerves and the thought of going up there really puts me off. I need to be brave!

I am more in the thought that the Solarscope blocking filter isn't really suited to it, I thought the PST looked quite good in testing over Christmas.

Alexandra


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Re: Sunshine! tinkering with the C11 24/06/2020

Post by marios i. »

Looks great.Wonderful work !


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Re: Sunshine! tinkering with the C11 24/06/2020

Post by yltansg »

Hi Alexandra,

I can see many good details in your images. Are you using the same PST etalon for this session as the one you used on 25June (viewtopic.php?f=4&t=28632)? What BF are you using? So far I have good success with the Coronado BF 5. I have not used Solarscope BF. I will be trying out a new BF that Apollo has developed recently.

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Re: Sunshine! tinkering with the C11 24/06/2020

Post by Montana »

Hello Alfred, yes the same PST etalon for all the PST mod images + a Solarscope blocking filter.

Alexandra


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