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acr_astro

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About acr_astro

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    Star Forming

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    Male
  • Location
    Germany, Dusseldorf area
  1. Dear all, thanks a lot for the great feedback! I'm just coming in from my terrace: Indeed the large prom is gone. So I'm even happier that I caught it yesterday. Clear and sunny skies! Achim
  2. Dear all, after coming home from work this afternoon, I decided to do a solar sketch in my garden at pretty hot 35°C. Now cooling down in my 23°C living room with the blinds down, I'd like to share a striking large prominence at the limb with you. I have never seen such a large one before: Telescope: Lunt LS50THaB600PT Eyepiece: Celestron X-Cel 10mm Date & Time: July 31st, 2020 / 1600-1630 CEST Location: home garden, Dusseldorf region, Germany Technique: reddish Koh-i-Noor Toison d'Or pastels and pastel pens on black Hahnemühle mould-made pastel paper Size: 24 x 31 cm Clear and sunny skies! Achim
  3. Dear all, today we're having a sunny day with just some small cumulus over here in Germany. So a great opportunity to try my new black mould-made paper doing a pastel sketch of the H alpha sun. Here's the result: Telescope: Lunt LS50THaB600PT Eyepiece: Celestron X-Cel 10mm Date & Time: July 13th, 2020 / 1530-1600 CEST Location: home terrace, Dusseldorf region, Germany Technique: reddish Koh-i-Noor Toison d'Or pastels and pastel pens on black Hahnemühle mould-made pastel paper Size: 24 x 31 cm Clear and sunny skies! Achim
  4. Hi Mike, a fine sketch of Mare Crisium! Never heard of Mons Usov. I'll have look some day... Clear skies Achim
  5. Dear all, I have recently purchased dark blue mould-made pastel paper and yesterday I had the opportunity to use it in dusk to do a chalk sketch of the waxing crescent moon. The paper color fit well with the evening sky. But since charcoal for the shadows would have been looking odd, I decided to try a new technique for the dark areas. Even though you're lacking the ability to sketch really small details, I used a kneadable eraser for the terminator and craters. For the smaller craters, I additionally used a metal erasing pattern to erase just a small circle. So in the end, this moon is made of just chalk. (apparently no cheese ) Telescope: TS 70/420 ED Eyepiece: ExploreScientific 6.7mm/82° Date & Time: June 24th, 2200-2300 CEST Location: home terrace, Dusseldorf region, Germany Technique: Koh-i-Noor chalk pen and kneadable eraser on dark blue Hahnemühle mould-made pastel paper Size: 24 x 31 cm Clear and skies! Achim
  6. Hello Mike, a nice sketch of this far-southern lunar area! Thanks for sharing! Achim
  7. Hello Mike, thanks for the wonderful feedback. But looking at your sketches, I don't agree that your're just playing with chalk - your sketches are great! Clear skies! Achim
  8. Hello Mike, a very detailed sketch! I like the realistic 3D way your're depicting the crater rims and shadows and the grey tones and textures of the lunar surface! Clear skies! Achim
  9. Dear all, tonight I have hoped to get a clear sky to observe and sketch the Golden Handle of Sinus Iridum and I've been lucky: Just interrupted by some smaller clouds and dimmed by cirrus, I was able to sketch it. Here you are: Telescope: Martini 10" f/5 truss-tube Dobsonian Eyepiece: Explore Scientific 6.7mm/82° Date & Time: June 1st, 2020 / 2215-2315 CEST Location: Home terrace, Dusseldorf Region, Germany Technique: Koh-i-Noor chalk, extra charcoal and whitecoal pens and pieces on black sketching paper Size: appr. 25x25cm Clear skies! Achim
  10. Hi Ruud, Laudropb and Mark, thanks for your great feedback! Clear skies! Achim
  11. Hello Mike, that's a wonderful sketch of this large - and famous - lunar area! I have the three craters named after the Apollo 11 astronsuts on my lunar target list for quite some time. I should make them some evening. So I see your sketch as an awesome reminder for me Clear skies! Achim
  12. Dear all, yesterday I've sketched the 134km pre-nectarian lunar crater Walther at the terminator. Whether it's Walter or Walther is a bit of a mystery: Rukl, the "Atlas and Gazetteer of the near side of the moon" and the Clementine Atlas call it Walter, John Moore, Wikipedia and the IAU call it Walther. So it's a bit like "Where's Waldo"... However here it is: Telescope: Martini 10" f/5 truss-tube Dobsonian Eyepiece: Explore Scientific 6.7mm/82° Date & Time: May 29th, 2020 / 2230-2330 CEST Location: Home terrace, Dusseldorf Region, Germany Technique: Koh-i-Noor chalk, extra charcoal and whitecoal pens and pieces on Seawhite of Brighton black sketching paper Size: appr. 20x25cm Clear skies! Achim
  13. Dear all, as visible on the GONG H alpha network monitor on the internet, there's a nice, pretty large prominence on the solar limb. So I set up my gear and looked by myself during my lunch break. As usual the sketch is R/L-mirrored. Here it is: Telescope: Lunt LS50THaB600PT Eyepiece: Celestron X-Cel 10mm Date & Time: May 26th, 2020 / 1315-1345 CEST Location: home terrace, Dusseldorf region, Germany Technique: reddish Koh-i-Noor Toison d'Or pastels and pastel pens on grey Hahnemühle mould-made pastel paper Size: 24 x 31 cm Clear and sunny skies! Achim
  14. 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 Clear (and sunny) skies! Achim
  15. Hi all, as well today the sun is shining brightly here. I set up the Lunt to have a look at it, at first just for observing. However, somehow I cannot resist and have to do a sketch This time I've chosen reddish pastels on grey paper to better catch the color of the view in the eyepiece. Telescope: Lunt LS50THaB600PT Eyepiece: Celestron X-cel 10mm Date & Time: May 15th, 2020 / 1400-1430 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 Clear (and sunny) skies! Achim
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