Observations on Earth taking the elevation of the Sun (above). The bottom picture shows the different appearance of the sky to an observer during day and night. Dated 16th century

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Photo credit: © World History Archive / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 1539, 16th, archival, archive, astronomy, century, chart, day, earth, elevation, historical, history, illustrated, illustration, night, observation, observations, observe, planet, planets, sky, solar, space, sun, system, time