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Additional info for Astronomical sketching : a step-by-step introduction
9) Step 8 Carefully remove the masking tape from the periphery of the drawing. The sketch is now ﬁnished and this is the ﬁnal result. 10) CHAPTER TWO Sketching Comets Comets add a sense of surprise and freshness to the predictability and seeming timelessness of the visible cosmos. Some of these mists of dust and ﬂuorescing gas sail through the inner solar system at regular intervals, such as the famous comet 1P/Halley. Many other comets are discovered yearly as they make their ﬁrst observed descent to our vicinity.
Continue doing this until all of the gray tones from #2 to #9 are ﬁ lled in with their correct values from the code sequence chart. 7) Step 7 Now that all of the outlines are ﬁ lled in and have had time to completely dry, the last procedure is to erase the light pencil outline, revealing the completed sketch. Try not to be overaggressive with the pressure of the eraser; too much force could rip the paper. Art Gum erasers work well for this last operation because they are soft and crumble easily.
I removed the lamp head and wiring from the gooseneck lamp. I then used the hose clamp to attach the spring clamp to the loose end of the gooseneck. 7 spring clamp, and the gooseneck is clipped to the clipboard. 8) You may need to slip a narrow item such as an empty cassette tape holder beneath the clipboard so that the gooseneck clip has a thicker surface on which to attach itself. Another lighting solution that some amateur astronomers ﬁnd useful and convenient is a red LED headlamp. A headlamp can keep your hands free, and point the light right where you need it.