Sun & Moon 20th Sept '19

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Carbon60
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Sun & Moon 20th Sept '19

Post by Carbon60 » Fri Sep 20, 2019 5:47 pm

A few images of the Sun and Moon captured at various times throughout the day. The lovely large prom remains the main point of interest on an otherwise extremely blank Sun, whilst the waning Gibbous Moon provides wonderful views of the heavily cratered regions in local setting sunlight.

Image20190920_Moon by Stuart Green, on Flickr

Image20190920_Moon1_x5 by Stuart Green, on Flickr

Image20190920_Moon2_x5 by Stuart Green, on Flickr


Sun in CaK

Image20190920_CaK_FD_Colour by Stuart Green, on Flickr

Solar mosaic in Ha. A real challenge to get on-band on a featureless disk.

Image20190920_Ha_FD_Mosaic_Colour by Stuart Green, on Flickr

And then the beautiful prom

Image20190920_prom1 by Stuart Green, on Flickr

Image20190920_prom1_Inverted by Stuart Green, on Flickr

Finishing off with some solar granulation.

Image20190920_Solar Granulation by Stuart Green, on Flickr

Image20190920_Solar Granulation_colour by Stuart Green, on Flickr

Thanks for looking.

Stu.


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Re: Sun & Moon 20th Sept '19

Post by MAURITS » Fri Sep 20, 2019 5:57 pm

A lot of very nice details Stu.


Regards,
Maurits

Vista del Cielo Observatory

www.vistadelcielo.be

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Re: Sun & Moon 20th Sept '19

Post by gabrieli » Fri Sep 20, 2019 11:53 pm

Hi, Stu

The lunar images are great but to me the standout is the finely detailed prom.

Lou



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Re: Sun & Moon 20th Sept '19

Post by MalVeauX » Sat Sep 21, 2019 1:16 am

Really great captures Stu, awesome resolution!

Very best,



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Re: Sun & Moon 20th Sept '19

Post by ffellah » Sat Sep 21, 2019 1:56 am

A pretty incredible set, Stu.

Franco



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Re: Sun & Moon 20th Sept '19

Post by Astrophil » Sat Sep 21, 2019 1:58 am

All keepers, Stu. That prom is still showing off. Glad you got it.

Phil



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Re: Sun & Moon 20th Sept '19

Post by DeepSolar64 » Sat Sep 21, 2019 5:31 am

Stu,

Excellent!! I especially love the CaK and granulation images.

James


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Re: Sun & Moon 20th Sept '19

Post by yltansg » Sat Sep 21, 2019 9:20 pm

Beautiful set, Stu. I especially like the proms rising from the grasses.

Alfred



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Re: Sun & Moon 20th Sept '19

Post by Starry Jack » Sat Sep 21, 2019 10:40 pm

Gorgeous. I'm trying to increase my skills to get that clarity on resolution. Any tips?


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Re: Sun & Moon 20th Sept '19

Post by Carbon60 » Sun Sep 22, 2019 7:18 am

Many thanks, everyone. I was fortunate that everything came together, including the seeing conditions, which can’t be said for the skies yesterday. The seeing conditions were awful and nothing in hi-res worked.

Stu.


Lunt LS60THa B1200 PTFT
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Re: Sun & Moon 20th Sept '19

Post by Carbon60 » Sun Sep 22, 2019 7:48 am

Starry Jack wrote:
Sat Sep 21, 2019 10:40 pm
Gorgeous. I'm trying to increase my skills to get that clarity on resolution. Any tips?
Hi Jack,

Specifically for the prom shots....

Use as fast a frame rate as possible. I use a Basler acA1920-155um IMX 174 sensor (up to 160 fps) with 6-10ms exposures, but faster is better to really freeze the action. I usually capture 10s SER files.
My scope is a 150mm scope operating at about f35.
I use Genika Astro image capture software, AS!3 stacking (10% of 1600 frames), ImPPG deconvolution and sharpening, but don’t over do things. Too much deconvolution introduces artefacts and it’s a balance between the two functions.
Seeing makes all the difference, of course, and here you’ll need some luck. You can’t create good data from bad.

Then.....
Practice, practice, practice.......

Hope this helps.

Stu.


Lunt LS60THa B1200 PTFT
150mm H-alpha Solar telescope with Lunt35 mod
DMK41, Basler acA1920-155
NEQ6 Pro-mount
Fluxgate Magnetometers (1s and 150s Cadence)
More images at http://www.flickr.com/photos/solarcarbon60/

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Re: Sun & Moon 20th Sept '19

Post by MapleRidge » Sun Sep 22, 2019 3:07 pm

Hi Stuart...

An incredible set of solar and lunar images...well done :bow

Love the detail in all of them, but the WL granulation and proms details are my fav's!!!

Brian


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Re: Sun & Moon 20th Sept '19

Post by Starry Jack » Mon Sep 23, 2019 1:55 am

Stu,
Thank you for the tips! Duly noted.


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Re: Sun & Moon 20th Sept '19

Post by marktownley » Mon Sep 23, 2019 8:38 pm

Very nice images Stu, I missed these shots.


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Re: Sun & Moon 20th Sept '19

Post by Montana » Tue Sep 24, 2019 6:49 am

Wonderful collection Stuart :bow :hamster: the lunar shots are lovely and crisp and yet soft, perfect! I love the colour of the CaK too :) and what a cracker of the big prom! I tried to image the Sun and prom on Saturday but the seeing was the worst I have ever seen and yet beautiful blue skies, many days of high pressure and the scintillation counter was between 0.8-1.2, weird!
Alexandra



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Re: Sun & Moon 20th Sept '19

Post by Carbon60 » Tue Sep 24, 2019 6:08 pm

Many thanks, Brian, Mark and Alexandra.

I tried on Saturday too and I agree with you, Alexandra, it was absolutely diabolical seeing. I set up, viewed for a few minutes and packed up knowing it was a lost cause.

Stu.


Lunt LS60THa B1200 PTFT
150mm H-alpha Solar telescope with Lunt35 mod
DMK41, Basler acA1920-155
NEQ6 Pro-mount
Fluxgate Magnetometers (1s and 150s Cadence)
More images at http://www.flickr.com/photos/solarcarbon60/

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