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acr_astro

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About acr_astro

  • Rank
    Star Forming

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  • Gender
    Male
  • Location
    Germany, Dusseldorf area
  1. Hi Mike, a fine sketch of Mare Crisium! Never heard of Mons Usov. I'll have look some day... Clear skies Achim
  2. 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
  3. Hello Mike, a nice sketch of this far-southern lunar area! Thanks for sharing! Achim
  4. 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
  5. 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
  6. 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
  7. Hi Ruud, Laudropb and Mark, thanks for your great feedback! Clear skies! Achim
  8. 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
  9. 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
  10. 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
  11. 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
  12. 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
  13. Excellent sketch, Marios! Which technique are you using? Clear skies! Achim
  14. Hello Mike, it is quite seldom to see crater sketches in full light here. Yours is wonderful! Well done! Clear skies! Achim
  15. Hello Koen, Jeremy and Ruud, thanks a lot for the wonderful feedback! And thanks for all the likes! Clear skies! Achim
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