6/14 and 6/19 sketch in continuum and Ha updated with 6-25

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torsinadoc
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6/14 and 6/19 sketch in continuum and Ha updated with 6-25

Post by torsinadoc »

Our weather has been unbearably hot. I am not able to view/image in the AM because of work. By the late afternoon the conditions are difficult. The last few days the heat index has been > 100F. This is atypical for my area. These are digital sketches. On 6-19 I utilized a grid to overlay the disc which helped with orientation and made it easier to get the spot size closer to what I view in the eye piece. I used an iPad, apple pencil and procreate to sketch. PS to rotate image

6-14 11:31 UTC
Continuum:
ES 102, continuum, baader wedge and baader zoom
Seeing 3, transparency 2/5. It was hazy had a high layer of clouds
Procreate digital sketch, iPad

Image6-14-22 continuum sketch by Torsinadoc, on Flickr

6-19 10:27 PM UTC
Continuum
ES 102, continuum, baader wedge and baader zoom
Image6-19-22 continuum sketch by Torsinadoc, on Flickr

Ha
Lunt 100 SS, B1800 and baader zoom
Transparency 3/5 and seeing 4/5
heat index 98F
Image6-19 Ha sketch prom by Torsinadoc, on Flickr
Last edited by torsinadoc on Sat Jun 25, 2022 3:06 pm, edited 1 time in total.


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Re: 6/14 and 6/19 sketch in continuum and Ha

Post by ffellah »

Love your sketches Alan ! The FD is almost photographic.

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Re: 6/14 and 6/19 sketch in continuum and Ha

Post by marktownley »

Lovely sketches there ALan, thanks for sharing!


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Re: 6/14 and 6/19 sketch in continuum and Ha

Post by torsinadoc »

Thanks. I am still working on technique but I'm gaining a better understanding of the software


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Re: 6/14 and 6/19 sketch in continuum and Ha

Post by SolarHans »

Interesting technique digital sketching. Result looks like a photograph, very nice!

How much time does it take to make a drawing?

Regards,
Hans


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Re: 6/14 and 6/19 sketch in continuum and Ha

Post by MAURITS »

Superb digitale sketches Alan.


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Re: 6/14 and 6/19 sketch in continuum and Ha

Post by torsinadoc »

SolarHans wrote: Fri Jun 24, 2022 3:26 pm Interesting technique digital sketching. Result looks like a photograph, very nice!

How much time does it take to make a drawing?

Regards,
Hans
Thanks everyone

Hans

It depends on the complexity of the disc. I use layers focusing on scale and anatomy. The entire process from start to end that takes a few minutes for a relatively low activity disc or >30 minutes (viewing and drawing). My Ha drawings take more time. I added noise to my WL image because it adds a little texture to the disc.

I made several master files that I can open and add solar details. It took a while to make the masters so that saved front end time. I also tried several different pencil settings, brushes, etc and when I found ones that I liked I made notes so I can reuse them (I use different pencil/settings for WL umbra than penumbra, etc
Photo Jun 25, 3 28 55 AM.png
Photo Jun 25, 3 28 55 AM.png (1.54 MiB) Viewed 623 times
I turn on a grid
Photo Jun 25, 3 39 39 AM.png
Photo Jun 25, 3 39 39 AM.png (2.25 MiB) Viewed 623 times
At a low magnification I will outline the relative location and scale of each area.
Photo Jun 25, 3 40 16 AM.png
Photo Jun 25, 3 40 16 AM.png (2.7 MiB) Viewed 623 times
I use layers for the umbra, penumbra and faculae. I zoom in at higher magnification and spend time drawing each detail using the outline as border to keep spot scale correct. I no longer use the penumbra, umbra and faculae outlines and only the original low magnification outline. Prior to adding the general outline I was off in scale and disc location for each area. I like layers because I may mess up and it is easier to fix without erasing other structures. Once I have double checked each area and adjusted (add blur or use blending tool) I turn off grid and flatten image. Since I sketch with manual Alt/Az mount I need to rotate and horizontal flip my image (PS).
Photo Jun 25, 3 41 48 AM.png
Photo Jun 25, 3 41 48 AM.png (2.66 MiB) Viewed 623 times
Photo Jun 25, 3 41 34 AM.png
Photo Jun 25, 3 41 34 AM.png (2.07 MiB) Viewed 623 times

I am spending time to try and improve my observational skills. I am finding that I am getting better at noticing subtle details in Ha and WL.


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Re: 6/14 and 6/19 sketch in continuum and Ha

Post by SolarHans »

Thank you very much for your detailled explanation on how to make the sketches!

From making sketches of Deep Sky objects in the past I know that one can see more details when one makes sketches, compared to "just looking".
My drawing skills were not so great however, so I stopped drawing.

Maybe good idea for me to start making sketches again during solar observation to notice more subtle details.

Regards,
Hans


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Re: 6/14 and 6/19 sketch in continuum and Ha

Post by rigel123 »

That really is fascinating!


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Re: 6/14 and 6/19 sketch in continuum and Ha

Post by torsinadoc »

SolarHans wrote: Sat Jun 25, 2022 10:14 am Thank you very much for your detailled explanation on how to make the sketches!

From making sketches of Deep Sky objects in the past I know that one can see more details when one makes sketches, compared to "just looking".
My drawing skills were not so great however, so I stopped drawing.

Maybe good idea for me to start making sketches again during solar observation to notice more subtle details.

Regards,
Hans
I wouldn't consider my skills all that great. I can barely draw a stick figure but I still enjoy the process and find it rewarding.


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Re: 6/14 and 6/19 sketch in continuum and Ha updated with 6-25

Post by torsinadoc »

Today's conditions were finally tolerable. It was in the low 80s with a slight breeze.
Equipment:
Celestron 150/1200 achromat + baader wedge, continuum filter- baader zoom. I should have used my binoviewers but my observing buddy (Franklin the dog) was being "needy".
Transparency was average, seeing was 3-4/5

Image is not rotated or flipped. N-S is 62.1 (from tilting sun) and west is up.

AR 3038
Image6-25_3038 sketch by Torsinadoc, on Flickr

AR 3040
Image6-25 206utc AR 3040 sketch by Torsinadoc, on Flickr


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Re: 6/14 and 6/19 sketch in continuum and Ha updated with 6-25

Post by marktownley »

Nice additions ALan!


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Re: 6/14 and 6/19 sketch in continuum and Ha updated with 6-25

Post by Valery »

Amazing prominences sketches !


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Re: 6/14 and 6/19 sketch in continuum and Ha updated with 6-25

Post by nicspenceryork »

Gorgeous sketches and really interesting to see how you create it.
Nic


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Re: 6/14 and 6/19 sketch in continuum and Ha updated with 6-25

Post by torsinadoc »

Thanks everyone.


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Re: 6/14 and 6/19 sketch in continuum and Ha updated with 6-25

Post by Montana »

These are absolutely terrific :bow :hamster: and thanks for the info on how you do it. It is great to see more sketching on the forum :hamster:

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Re: 6/14 and 6/19 sketch in continuum and Ha updated with 6-25

Post by DeepSolar64 »

These are awesome!! Sketching, whether by pencil or digital is a superior way to document the Sun by visual observation. Certainly better than the description method I use. I never would have realized that digital sketching could rival sketching with actual pencil and paper.

I don't know how I missed these.

James


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Re: 6/14 and 6/19 sketch in continuum and Ha updated with 6-25

Post by torsinadoc »

DeepSolar64 wrote: Tue Jun 28, 2022 4:53 am These are awesome!! Sketching, whether by pencil or digital is a superior way to document the Sun by visual observation. Certainly better than the description method I use. I never would have realized that digital sketching could rival sketching with actual pencil and paper.

I don't know how I missed these.

James
Thanks everyone.

I tried both pencil and digital. I found digital allowed easier storage with my digital images. It is nice to have everything in one place. I would NOT discount your eloquent ability to describe what you see in the eyepiece. I lack that skill.


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Re: 6/14 and 6/19 sketch in continuum and Ha updated with 6-25

Post by DeepSolar64 »

Thanks for the compliment. I have plenty of practice on descriptions.


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