https://creativecommons.org/publicdomain/zero/1.0/ https://www.rawpixel.com/image/428207 A colorful solar system chart from The Twentieth Century Atlas of Popular Astronomy (1908), by Thomas Heath BA (1861-1940).…

A colorful solar system chart from The Twentieth Century Atlas of Popular Astronomy (1908), by Thomas Heath BA (1861-1940). Digitally enhanced from our original chromolithographic plate.

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