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acr_astro

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About acr_astro

  • Rank
    Star Forming

Profile Information

  • Gender
    Male
  • Location
    Germany, Dusseldorf area
  1. Hi Ruud, thanks for sharing this wonderful sketch of these famous lunar observation targets! Well done! Clear skies Achim
  2. Dear all, thanks a lot for the great feedback and the likes! Clear skies Achim
  3. 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
  4. Hi Ruud, that's a great sketch! Thanks for sharing with us. Clear skies Achim
  5. Hi Mike, great sketches of this excellent lunar sketching target! Clear skies Achim
  6. Hi Ruud, that's a great sketch. Well done! Clear skies Achim
  7. acr_astro

    Clusters

    Great sketches. Thanks for sharing with us here! Achim
  8. Hi Ruud, I'll do this here as well. Sunblinds down and staying more or less inside. But now I have a sketch of the sun inside the house And it's not hot. It's black - light switched off! Clear skies! Achim
  9. Hi, wonderful sketch. I like the way you're depicting the roughness of the surface (hills, craters, trenches, etc.). Clear skies! Achim
  10. Dear all, today once again, I did a charcoal sketch of our star bringing us 33°C before lunch time. The solar "north pole" is approximately at the prominence at the top of the sketch. The sketch is right-left flipped. Beside the orientation of the north pole, I figured out on the internet that the bright spot in the left area of the sketch is AR12745. The disc and parts of the prominences is done with natural charcoal. The filament and the dark areas of the prominences are done with the charcoal pen. Telescope: Lunt LS 50 THa B600 PT Eyepiece: Celestron X-cel 10mm Date & Time: July 23rd, 2019 / 1130-1200 CEST Location: home terrace, Dusseldorf region, Germany Technique: natural vine charcoal and Koh-i-Nor charcoal pen on white Hahnemühle Ingres mould-made pastel paper Size: 24x31cm Clear (and sunny) skies! Achim
  11. acr_astro

    Crater Cichus

    Hello Mike, excellent sketch of craters I haven't observed yet! I should put this on my to-do-list. And thanks for the informative text - I enjoyed reading! Clear skies Achim
  12. acr_astro

    Crater Rheita

    Hi, great sketch and as well a fine text about your observation. Clear skies Achim
  13. Hi, this is a great sketch! Thanks for sharing with us. Clear skies Achim
  14. Dear all, as usual, I couldn't resist to create yet another charcoal sketch of the H alpha sun. It is relaxing for me to observe the proms and filaments and to try to catch them "as they are" on the paper. At first glance, the sun looks pretty similar - just at second glance and comparison with my other sketches, I have seen that it looks similar but always a bit different. The disc and the prominences are done with natural charcoal, just for the filaments, I needed a Koh-i-Noor artificial charcoal pen since it's darker. Telescope: Lunt LS 50 THa B600 PT Eyepiece: Celestron X-cel 10mm Date & Time: July 1st, 2019 / 1015-1045 CEST Location: home terrace, Dusseldorf region, Germany Technique: natural vine charcoal and Koh-i-Nor charcoal pen on white Hahnemühle Ingres mould-made pastel paper Size: 24x31cm Clear (and sunny) skies! Achim
  15. Dear all, today morning I had a look at the GONG network images on the internet and set up my telescope to have a look at that awesome large prominence on the southeastern limb of our home star. First I concentrated on a sketch of just that wonderful prominence. After that, I created - as usual - a sketch of the full solar disc. I noticed that the prominence already had changed during my sketching time. Telescope: Lunt LS 50 THa B600 PT Eyepiece: TS HR Planetary 7mm Date & Time: June 28th, 2019 / 1045-1145 CEST Location: home terrace, Dusseldorf region, Germany Technique: natural vine charcoal on white Hahnemühle Ingres mould-made pastel paper Size: 24x31cm  Clear (and sunny) skies! Achim
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