15.06.2021 AR12833 Patience is rewarded.

this is the main message area for anything solar :)
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Rusted
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15.06.2021 AR12833 Patience is rewarded.

Post by Rusted »

I have been tormented by cloud and soft seeing this morning.
So I fiddled with the PST etalon and spacers to pass the time.
Then the seeing improved and I captured this between the clouds: :cool:

15.06.2021 11.22  2.6x gpc col.jpg
15.06.2021 11.22 2.6x gpc col.jpg (110.1 KiB) Viewed 411 times
15.06.2021 11.22  2.6x gpc.jpg
15.06.2021 11.22 2.6x gpc.jpg (97.62 KiB) Viewed 411 times
Added two more before the seeing crashed:

15.06.2021 11.50  2.6x gpc col.jpg
15.06.2021 11.50 2.6x gpc col.jpg (125.1 KiB) Viewed 403 times
15.06.2021 11.50  2.6x gpc.jpg
15.06.2021 11.50 2.6x gpc.jpg (107.37 KiB) Viewed 403 times
Last edited by Rusted on Tue Jun 15, 2021 10:02 am, edited 1 time in total.


http://fullerscopes.blogspot.dk/

H-alpha: Baader 160mm D-ERF, iStar 150/10 H-alpha objective, 2" Baader 35nm H-a, 2" Beloptik KG3,
Lunt 60MT etalon, Lunt B1200S2 BF, Assorted T-S GPCs or 2x "Shorty" Barlow, ZWO ASI174.
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Re: 15.06.2021 AR12833 Patience is rewarded.

Post by minhlead »

Nice pic, Chris


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Re: 15.06.2021 AR12833 Patience is rewarded.

Post by ffellah »

Great catch of the AR, Rusted

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Re: 15.06.2021 AR12833 Patience is rewarded.

Post by EGRAY_OBSERVATORY »

Absolutely an excellent capture Chris, so thanks for your patience, sharing and CLEAR SKIES.

Terry


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Re: 15.06.2021 AR12833 Patience is rewarded.

Post by Montana »

This active region is still going strong, that's a very big spot :bow :hamster:

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Re: 15.06.2021 AR12833 Patience is rewarded.

Post by Rusted »

Thank you all for the kind words. :bow

The seeing was almost steady but not particularly transparent.
I re-wrapped the PST etalon in Teflon plumber's tape yesterday.
The alignment seems to have improved over completely naked. :lol:

I have another 50 frame, PIPP AVI animation which runs like a video of a still image.
It doggedly refuses to move. Anybody got a spare taser or defibrillator? :shock:

"Clear!" ZAP!! It's alive! :mrgreen:


http://fullerscopes.blogspot.dk/

H-alpha: Baader 160mm D-ERF, iStar 150/10 H-alpha objective, 2" Baader 35nm H-a, 2" Beloptik KG3,
Lunt 60MT etalon, Lunt B1200S2 BF, Assorted T-S GPCs or 2x "Shorty" Barlow, ZWO ASI174.
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Re: 15.06.2021 AR12833 Patience is rewarded.

Post by Ivan »

Great shots, it's always nice to be in time before clouds cover the sky.

Ivan


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Re: 15.06.2021 AR12833 Patience is rewarded.

Post by MAURITS »

Beautiful Chris


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Re: 15.06.2021 AR12833 Patience is rewarded.

Post by DavidP »

Very nice images. I see that you’re using the Istar 150/10 Ha.
How have you found its performance?


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Re: 15.06.2021 AR12833 Patience is rewarded.

Post by Rusted »

DavidP wrote: Tue Jun 15, 2021 8:34 pm Very nice images. I see that you’re using the Istar 150/10 Ha.
How have you found its performance?
Sorry David and thankyou. I only spotted your question as I was closing down at bedtime.

I used an old, secondhand, Celestron 150/8 prior to the iStar. Later with the 1.125 Baader GPC.
The iStar 150/10 H-a objective seems like a much better quality lens than the Celestron. It is certainly a heavy beast!

I had opted for their H-alpha lens at considerably greater expense than their standard achromat.
Assuming that the much larger price tag would [hopefully] provide better optical work and testing.

Though I concentrate almost entirely on solar close-ups, I have also used the H-a lens for lunar imaging.
It provided nicely satisfying, lunar close-up images with a Baader Solar Continuum filter and ASI174MM camera.

I also have the iStar 180/12 R35 and found that to be a nice lens too.
I was immediately using it regularly at up to 300x visually on the Moon.
The Celestron would never allow much over 120x!

Both lenses are mounted in their own, oversized, thin, galvanized steel, ventilation ducts.
These are straight seamed rather than the regular, spiral wound.

The idea of the straight seam is that it doesn't collect inflammable dust.
It also looks much smarter than the spiral wound type IMO.
The low, straight seam is easily arranged at the hinge gap of standard "Skywatcher" tube rings.
Here's one of my blog posts on the iStar 150/10 H-a lens:

https://fullerscopes.blogspot.com/2020/ ... alpha.html


http://fullerscopes.blogspot.dk/

H-alpha: Baader 160mm D-ERF, iStar 150/10 H-alpha objective, 2" Baader 35nm H-a, 2" Beloptik KG3,
Lunt 60MT etalon, Lunt B1200S2 BF, Assorted T-S GPCs or 2x "Shorty" Barlow, ZWO ASI174.
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