Galileo’s drawings of our Sun’s spots (1612)

Galileo Galilei drew our Sun's spots, at about the same time each day over the course of 37 days in June and July 1612 (skipping two days and yielding 35 drawings). he could not look directly at our Sun, with his naked eye or through a telescope (the new-fangled technology of his time), without significant damage to his eyes. the solution was to point the front of the telescope at our Sun and point the sunlight exiting the other end of the telescope onto a piece of paper (projecting an image of our Sun, spots and all, onto the page). Galileo could draw a circle with a compass, position the paper so that the Sun aligned with the circle, and draw in the sunspots each day. a casual review of these drawings makes evident that our Sun rotates.

this cascading accordion presents those 35 drawings, side-by-side, in sequence (3.63" height by width expandable to 10.75 feet). full color inkjet print (mix of 11 pigment inks) on superheavyweight matte plus paper (first materializing as a 17x36” print and then cut, hand-folded, seamed, pressed, and sleeved in studio).

galileo drawings sidebyside.jpg
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a million miles

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our Sun's spots (401 years after Galileo)