Thomas Harriot’s Moon map
As Thomas Harriot gained access to more powerful telescopes, he made increasingly sophisticated maps of the Moon. This one, probably made with a telescope of around 30 times magnification, precisely details the Moon’s ‘seas’ or ‘maria’.
Harriot regularly corresponded with friends who were also trying out telescopes. One wrote to him saying that the full moon ‘appears like a tarte that my cooke made me the last week’.
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