Solar Harvest 3rd August 2021

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Carbon60
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Solar Harvest 3rd August 2021

Post by Carbon60 »

A few from this morning in Ha and CaK.

First up Ca II K full disks

Image20210803_CaK_FD_mono by Stuart Green, on Flickr

Image20210803_CaK_FD_colour by Stuart Green, on Flickr

and a closer view of the newly named small active region AR12850

Image20210803_CaK2_AR12850_Mono by Stuart Green, on Flickr

Image20210803_CaK2_AR12850_colour by Stuart Green, on Flickr

Ha Full disks on my Lunt 60

Image20210803_Ha_FD_Mono by Stuart Green, on Flickr

Image20210803_Ha_FD_colour by Stuart Green, on Flickr

and a closer view of AR12850 and a small magnetically disturbed region.

Image20210803_Ha_AR12850 by Stuart Green, on Flickr

Image20210803_Ha_AR by Stuart Green, on Flickr

Some proms in the mix too.....

Image20210803_Ha_Proms1 by Stuart Green, on Flickr

Image20210803_Ha_Proms1_colour by Stuart Green, on Flickr

Image20210803_Ha_Proms2_Mono by Stuart Green, on Flickr

Image20210803_Ha_Proms2_colour by Stuart Green, on Flickr

The forecast isn't so good for the next few days, so that's probably it for a little while.

Thanks for looking.

Stu.
Last edited by Carbon60 on Wed Aug 04, 2021 6:23 am, edited 1 time in total.


H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
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Re: Solar Harvest 3rd August 2021

Post by David_The_Bears_Fan »

Great set Stu


David

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Re: Solar Harvest 3rd August 2021

Post by Petrus »

Fantastic solar harvest Stu! I really enjoy images of those nice prominences.


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Re: Solar Harvest 3rd August 2021

Post by EGRAY_OBSERVATORY »

Thanks Stu for your excellent captures and you were lucky to have some clear skies that morning.

Cheers
Terry


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Re: Solar Harvest 3rd August 2021

Post by Martin_S »

Wow, it looks like a bumper harvest Stu well done.

Martin


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Re: Solar Harvest 3rd August 2021

Post by DeepSolar64 »

These are really nice Stu. I especially like your CaK images.

James


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Re: Solar Harvest 3rd August 2021

Post by Carbon60 »

Many thanks guys. :)

Stu.


H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
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Re: Solar Harvest 3rd August 2021

Post by marktownley »

You got a very nice set of images there Stu, I was hoping for sun this morning, but, alas it is cloudy, maybe will clear up in a bit.


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Re: Solar Harvest 3rd August 2021

Post by Carbon60 »

Hi Mark,
It’s brighter here, but really hazy. The outlook doesn’t look good. :(

Stu


H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
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Re: Solar Harvest 3rd August 2021

Post by ffellah »

Another excellent set, Stu. How do you keep the full disks so perfectly and evenly illuminated, if I may ask ?

Franco :bow


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Re: Solar Harvest 3rd August 2021

Post by arnedanielsen »

Excellent as always, Stu!

Thanks for sharing,
Arne


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Re: Solar Harvest 3rd August 2021

Post by AndiesHandyHandies »

Hi

When I first looked at the first proms you image I thought there was a thin arch connecting them.

The top low prom looked like a tiger with curved down tail and with some imagination the flare prom a ring master with whip.

Cheers. Andrew.


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Re: Solar Harvest 3rd August 2021

Post by MapleRidge »

These are excellent images Stu...well done :bow

Brian


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Re: Solar Harvest 3rd August 2021

Post by MAURITS »

Excellent images Stu.


Regards,
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Re: Solar Harvest 3rd August 2021

Post by Carbon60 »

ffellah wrote: Wed Aug 04, 2021 11:08 am Another excellent set, Stu. How do you keep the full disks so perfectly and evenly illuminated, if I may ask ?

Franco :bow
Hi Franco,

No secrets :)... I spend quite a bit of time clocking and tuning the etalons, which when triple stacked gives me a bit of a headache. Sometimes everything just falls into place; other times I have to tweak and tweak and still I end up with slight unevenness. Sometimes I have to build from the bottom up.... No front etalons, just the internal pressure tuned etalon, which I get on band, then add the first external etalon and tweak and then add the second etalon and further tweak....and tweak again :(

The FD is a mosaic of multiple panes to try to even out any irregularities.

Stu.


H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
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