Early morning solar viewing 5-6th May 2020

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Early morning solar viewing 5-6th May 2020

Post by Montana » Thu May 07, 2020 10:37 am

I managed 2 very quick sessions early mornings before starting work. Tuesday was clear blue sky but the seeing appalling and the wind terrible, so I had packed away before 9am.

Wednesday was much better but even early morning I could see a saw tooth edge to the solar disc when visually looking at the Sun through the Solarscope. This spring really is the worst seeing conditions I have ever had consistently for more than 10 years solar viewing. Is it because I now have new houses on my viewing sky this year? It is starting to alarm me, especially after forking out so much on the C11 stuff. Anyway, it was just about bearable to support a 1.6x Barlow on the Solarscope DSF100 and the prominences were the stars.

This at 07:39 UTC
ImageSun_073956_06_05_2020_ by Alexandra Hart, on Flickr

and again during my lunch hour
ImageSun_113151_06_05_2020_ by Alexandra Hart, on Flickr

followed by a relaxing visual session sketching the prominence. The little hook in the centre erupted and changed rapidly during the 15min sketch so I had to keep changing the drawing.
Image2020-05-06 by Alexandra Hart, on Flickr

Then a full disc which is best viewed if you click through Flickr and keep clicking on the image until it is fully magnified.
This first one I over did the shadows and highlights to try and bring out the prominences
Image2020-05-06 Halpha Full disc by Alexandra Hart, on Flickr

the second is general colour
Image2020-05-06 Halpha Full disc f colour by Alexandra Hart, on Flickr

oh yes and Tuesday, I just about managed to scrape a CaK full disc image at 1x with the ASI174
Image2020-05-05 CaK full disc f colour by Alexandra Hart, on Flickr

and tried to test the 3x Barlow Televue with the cheapo Revelation 3x Barlow. It was a bit of a joke really, I managed this one below with the Televue but all the others were rubbish. I would say they are both pretty much identical. Probably the Televue has a slight edge in contrast and clarity and would be my one to pick but if you are on a budget the Revelation one is really all you need. I still think the Televue 2.5x powermate pops them all for clarity and contrast - if it didn't have that irritating reflection in the centre to spoil everything.
ImageSun_074537_05_05_2020 by Alexandra Hart, on Flickr

Thanks for looking.
Alexandra



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Re: Early morning solar viewing 5-6th May 2020

Post by dhkaiser » Thu May 07, 2020 11:19 am

Excellent images Alexandra, I really enjoy them. Especially the proms.


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Re: Early morning solar viewing 5-6th May 2020

Post by ffellah » Thu May 07, 2020 11:43 am

A very good session even with bad seeing, Alexandra. Your FDs are very clean and detailed, the prom shots cams out great and your drawing is excellent. Sorry to hear about the houses nearby. Glad you are enjoying some time with the sun.

Franco :bow



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Re: Early morning solar viewing 5-6th May 2020

Post by Martin_S » Thu May 07, 2020 11:45 am

Great results Alexandra, you done well to combat your poor seeing.

Martin


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Re: Early morning solar viewing 5-6th May 2020

Post by THEODORE-007 » Thu May 07, 2020 12:46 pm

Nice work alexandra.
I cant remember you to givin sketch.
Nice job as always.


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Re: Early morning solar viewing 5-6th May 2020

Post by JochenM » Thu May 07, 2020 12:56 pm

Very nice, Alexandra.

That full disk is absolutely stunning. So detailed.



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Re: Early morning solar viewing 5-6th May 2020

Post by krakatoa1883 » Thu May 07, 2020 2:27 pm

Great proms images, Alexandra. I love much your drawing, is it pencil or crayon ?


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Re: Early morning solar viewing 5-6th May 2020

Post by marios i. » Thu May 07, 2020 5:15 pm

Alexandra,
Beautiful images, the drawing is wonderful...you captured the details very well! I'm impressed


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Re: Early morning solar viewing 5-6th May 2020

Post by rsfoto » Thu May 07, 2020 8:13 pm

Excellent report and images


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Re: Early morning solar viewing 5-6th May 2020

Post by oreoluna » Thu May 07, 2020 9:44 pm

Montana wrote:
Thu May 07, 2020 10:37 am

followed by a relaxing visual session sketching the prominence. The little hook in the centre erupted and changed rapidly during the 15min sketch so I had to keep changing the drawing.

Alexandra
Hi Alexandra.
I watched the eruption a little later ...

Image

Regards Jozef



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Re: Early morning solar viewing 5-6th May 2020

Post by eroel » Thu May 07, 2020 10:04 pm

Alexandra:
Bad seeing but good session.
Beautiful shots and sketch.
Best wishes,
Eric.



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Re: Early morning solar viewing 5-6th May 2020

Post by MapleRidge » Fri May 08, 2020 12:38 am

Beautiful images and sketch Alexandra...well done :bow

Your images turned out well despite the seeing conditions,
Brian


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Re: Early morning solar viewing 5-6th May 2020

Post by marktownley » Fri May 08, 2020 8:37 am

You got a nice set of images Alexandra despite the seeing. The new houses may well be affecting the seeing, any development large or small will have a thermal signature, urban heat island and all that. It's probably exactly the same reason why I can't get hi-res images very often at all.

Very interesting about the barlows, I was secretly hoping the el-cheapo would trump the TV, but is still good to hear there is not much between them. You have got me thinking about the powermate and what makes it have more contrast than the others, I wonder if it is because it is a telecentric, and the narrow pass filter should operate closer to it's specified parameters in a telecentric beam rather than a converging beam. Hmm, time for me to do an experiment.


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Re: Early morning solar viewing 5-6th May 2020

Post by Montana » Fri May 08, 2020 10:43 am

Thanks guys for all the warm wishes :)

The sketch was with pencil (spelling mistakes and all) :lol:

Jozef, that is a brilliant series of images, is the time stamp UTC or local time? also, could I take a copy to submit to the British Astronomical Association archives with my sketch and images as it follows on so nicely?

Alexandra



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Re: Early morning solar viewing 5-6th May 2020

Post by oreoluna » Fri May 08, 2020 11:08 am

Montana wrote:
Fri May 08, 2020 10:43 am

Jozef, that is a brilliant series of images, is the time stamp UTC or local time? also, could I take a copy to submit to the British Astronomical Association archives with my sketch and images as it follows on so nicely?

Alexandra
Hello Alexandra.
Of course. It would be a pleasure for me!
Local daylight saving time is specified.
Regards Jozef



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Re: Early morning solar viewing 5-6th May 2020

Post by DeepSolar64 » Sat May 09, 2020 5:09 am

Awesome work Alexandra. Isn't it really nice to see change in the eyepiece in so short of time? Very few if any other astronomical object can boast that like the Sun can!

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Re: Early morning solar viewing 5-6th May 2020

Post by Carbon60 » Sat May 09, 2020 5:08 pm

Excellent images, Alexandra. Lovely proms and your Ha FDs with your Solarscope are always absolutely superb.

Very nice sketch too.

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Re: Early morning solar viewing 5-6th May 2020

Post by salvo lauricella » Sun May 10, 2020 10:28 am

Excellent session Alexandra, I really like your images!



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