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AR2822 WL (High Res), CaK, HA | May 14th 2021

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#1 MalVeauX

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Posted 14 May 2021 - 10:39 AM

Hi all,

 

Stormed and rained so far this week, but this morning was clear, lower temps and pretty ok seeing conditions between gusts. AR2822 is still looking good with a nice penumbra around the spot in the photosphere and lots of interesting activity in the chromosphere and popping off little flares.

 

High Res Photosphere:

 

51179262149_40bb11e612_o.jpg

 

51178466056_f923196412_o.jpg

 

Moderate Res Chromosphere:

 

(Doh, mislabeled the wavelength.... sigh, lol, its 3934A)

 

51177782767_e09499d5cd_o.jpg

 

51179262544_f8634ac5d9_o.jpg

 

51178466391_d2f02e117f_o.jpg

 

51178466346_055178c43e_o.jpg

 

51177782507_e7f1de0291_o.jpg

 

51177782472_c993ba0d1b_o.jpg

 

Seeing Conditions:

 

seeing05142021.png

 

Equipment:

 

120mm F10 Refractor (C6R masked)
2" Internal sub-aperture D-ERF (Baader Blue CCD-IR Block Filter) + Lunt CaK B1200 + 290MM sensor (CaK)
2" Internal sub-aperture D-ERF (Baader Red CCD-IR Block Filter) + HA Etalon + 2x 1.7A Blocking Filters + 290MM sensor (HA)

 

200mm F10 SCT + Full Aperture D-ERF
Baader Red CCD-IR Block Filter + Baader ND 3.0 Filter + 290MM sensor (Photosphere)

 

solarsetup_05142021.jpg

 

Very best,


Edited by MalVeauX, 14 May 2021 - 10:42 AM.

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#2 PhotonJohn

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Posted 14 May 2021 - 10:59 AM

Lovely set Marty, especially the CaK.


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#3 HPaleske

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Posted 14 May 2021 - 11:17 AM

Beautiful pictures, especially the first image I like it.

 

cs Harald

www.unigraphprom.de


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#4 Mike G.

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Posted 14 May 2021 - 11:27 AM

fantastic Marty!

 

thanks for sharing


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#5 EricCCD

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Posted 14 May 2021 - 12:41 PM

Fantastic, Marty! Seeing must have been good for you! waytogo.gif


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#6 MAURITS

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Posted 14 May 2021 - 12:47 PM

Beautiful Marty.


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#7 David Boulanger

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Posted 14 May 2021 - 01:44 PM

Very nice!!  Excuse my ignorance but what is this " sun scintillation monitor" ?  Where do I find this software?  Or is it more equipment I need while I seem to be always under budget in this telescope endevour.


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#8 MalVeauX

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Posted 14 May 2021 - 01:49 PM

Very nice!!  Excuse my ignorance but what is this " sun scintillation monitor" ?  Where do I find this software?  Or is it more equipment I need while I seem to be always under budget in this telescope endevour.

Hello,

 

The SSM is a device that uses IR light sampling and relates it indirectly to estimated atmospheric seeing conditions.

 

https://airylab.com/...lation-monitor/

 

The software is there, but it needs a device to operate. I use it to measure seeing so I know what my potential options are. In this case, I used it to get an idea of whether or not I could even attempt to use my 200mm aperture or not. So if you look at my 60 minutes of measurements there, my 1 min average is 1.2+ arc-seconds, which does not support 200mm aperture resolution. That is more closer to my 120mm aperture potential resolution, so I know I can image with 120mm aperture and have potentially good outcomes with lucky imaging. However, you'll notice peaks in seeing and I saw between my averages I would note seeing values around 0.7~0.8 arc-seconds (such as during the screen shot the current seeing was in this range) and seeing repeating peak moments like that, I can potentially lucky image with my 200mm in red wavelength at least, so I did that and was successful (lucky) with capturing some frames during a very brief moment of good sub-arc-second seeing. I image at 170 FPS so even half a second ensures me around 80~85 frames. That's lucky imaging!

 

Very best,


Edited by MalVeauX, 14 May 2021 - 01:53 PM.

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#9 David Boulanger

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Posted 14 May 2021 - 02:38 PM

Thank you.  OPT sells the device.  Learn something new every day.


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#10 dhkaiser

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Posted 14 May 2021 - 04:01 PM

Marty, very nice that you can use a 200mm aperture!


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#11 R Botero

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Posted 15 May 2021 - 03:17 AM

Great images. Love the B&W CaK. 

 

Roberto


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#12 BeltofOrion

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Posted 15 May 2021 - 04:45 PM

Great set of imaes, Marty!


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#13 lorenzo italy

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Posted 16 May 2021 - 02:02 AM

Great photographs,
and good seeing.
The two things always go hand in hand.
Congratulations.

 

Lorenzo


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#14 ch-viladrich

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Posted 16 May 2021 - 04:59 AM

A very nice set of pictures Marty !


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#15 Spot On

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Posted 07 June 2021 - 02:42 PM

Thank you.  OPT sells the device.  Learn something new every day.

David, you can also build it for a lot less, it's only about $25 worth of parts if you're handy. :-) http://www.joachim-s...e/sssm_eng.html


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#16 MalVeauX

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Posted 07 June 2021 - 04:20 PM

David, you can also build it for a lot less, it's only about $25 worth of parts if you're handy. :-) http://www.joachim-s...e/sssm_eng.html

Indeed,

 

Dave has made his DIY:

 

https://www.cloudyni...d-is-my-seeing/

https://www.cloudyni...y#entry10844955

 

Very best,


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#17 peterm

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Posted 07 June 2021 - 04:25 PM

Super detailed images as usual Marty, well done!


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