Dawn Breaking across Crater Schickard

Crater Schickard
Crater Schickard
Sketch and Details by Frank McCabe

One of the many large and interesting craters on the visible lunar surface is this 230 km. diameter walled plain crater known as Schickard. This Pre-Nectarian crater is somewhat isolated from craters of equal size. It is the large, shallow floor of Schickard that presents its most interesting features and at the time of this sketch light was just beginning to spread across its floor. Tens of millions of years after this crater formed a much larger impact formed the Orientale basin, blanketing the crater with highland ejecta. This great crater can easily be seen in a modest telescope with good lighting one or two days before full moon.


For this sketch I used: Black Canson sketching paper, 14”x 12”, White and black Conte’ pencils, a blending stump, plastic eraser. After scanning, contrast was increased (+1) using the scanner.

Telescope: 13.1 inch f/5.9 Dobsonian and 9mm eyepiece 218x
Date: 2-26-2010, 1:45 – 2:30 UT
Temperature: 21° C (68° F) clear, calm
Seeing: Antoniadi III
Co-longitude: 57.5°
Lunation: 11.98 days
Illumination: 90.4 %

Observing Location:
+41°37′ +87° 47′
Oak Forest, Il.

Frank McCabe

8 thoughts on “Dawn Breaking across Crater Schickard”

  1. Hi Frank,
    nice work! I find very interesting the use of black paper as a support.


  2. Fred and Aleksander,

    Thank you both for your comments and nice words.

    Frank 🙂

  3. Great sketch Franck!You have the motorization on dobson?Because i have many dofficult to make a sketch with mine…

  4. Giorgio and Dale,

    Thank you both for your kind remarks. It was a view I could not pass up.

    Giorgio, Yes I have my scope on an equatorial platform that drives for about 45 minutes.

    Frank 🙂

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