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acr_astro

Pastel sketch of the H alpha sun, Jan 26th

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Dear all,

after weeks of cloudy weather especially during the weekends, I got an opportunity to have a look at our home star and do a pastel sketch of the H alpha sun with some solar prominences and a group of sun spots.

20200126_Sun_H_alpha_small.JPG.2822e29a7b75f4e1f0a7d9114cf9b576.JPG

Telescope: Lunt LS50THaB600PT
Eyepiece: Celestron X-Cel 10mm
Date & Time: January 26th, 2020 / 1300-1340 CET
Location: home terrace, Dusseldorf region, Germany
Technique: reddish Koh-i-Noor Toison d'Or pastels and pastel pens on white Hahnemühle mould-made pastel paper
Size: 24 x 31 cm

Clear and sunny skies!

Achim

Edited by acr_astro
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Nice sketch. Do you use the textured paper to give the granular effect?

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Hi,

for two reasons: The granular effect is one thing, the other is that the pastel sticks better.

Clear skies

Achim

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      Hi there, starting to get somewhere with my C11 HD Edge. On the 22nd got this one of M1 Crab nebula, in h-alpha. Used the 0.7 focal reducer, bring the FL to 1960mm. The camera was an Atik 314L+ mono. The filter was a baarder 7nm. The mount was a Ioptron CEM120, guided off axis with PHD2.

    • By acr_astro
      Dear all,
      compared to four days ago, the solar disc and the prominences looked a bit more interestingly varied. I could do a sketch during the lunch break:

      Telescope: Lunt LS50THaB600PT
      Eyepiece: Celestron X-cel 10mm
      Date & Time: May 19th, 2020 / 1300-1330 CEST
      Location: home terrace, Dusseldorf region, Germany
      Technique: red and orange Koh-i-Noor pastels and pastel pens on grey Canson Mi-Teintes pastel paper
      Size: 24 x 32 cm
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    • By acr_astro
      Dear all,
      yesterday evening after doing the sketch of the three-day old moon, we had a wonderful twilight scene with Venus and the Moon over here.
      So I did a pastel sketch how I recalled it afterwards:

      Clear skies!
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    • By MimasDeathStar
      I heard the sun wasn't very active at the moment. Is it still active when you look through H-Alpha? (I don't really understand the difference!)
    • By acr_astro
      Dear all,
      now the summer heat seems to be gone. It's still sunny but not that hot anymore. Perfect weather for sketching for the H alpha sun:

      Telescope: Lunt LS50THaB600PT
      Eyepiece: Celestron X-Cel 10mm
      Date & Time: August 30th, 2019 / 1230-1300 CEST
      Location: home terrace, Dusseldorf region, Germany
      Technique: reddish Koh-i-Noor Toison d'Or pastels and pastel pens on yellowish Canson Mi-Teintes pastel paper
      Clear and sunny skies!
      Achim
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