I was about 45 minutes into this sketch when I began thinking about the last time I started a close up sketch of the crater Tycho. I was stopped shortly into that attempt by fast approaching clouds. This time I was not concerned because satellite images and the Clear Sky Chart for my area revealed little or no chance of that and suddenly as if on command the clouds rolled in from the east and sketching was over.
So I share with you my second attempt at a Tycho crater sketch. What is it they say about the third time?
For this partial sketch I used: black Strathmore 400 Artagain paper 9" x 12", white and black Conteâ€™
pastel pencils, gum eraser and blending stumps.
Telescope: 10 inch f/ 5.7 Dobsonian with 6mm (241x) eyepiece.
Date: 8-13-2009 9:30-10:15 UT
Temperature: 20Â°C (68Â°F)
Clear and then cloudy, calm
Seeing: Antoniadi III,
Co longitude 107.3Â°
Lunation 22 days
Oak Forest, Illinois