The 2024 solar eclipse will be visible across North America today. As the moon's position between the Earth and sun casts a shadow on North America, that shadow, or umbra, will travel along the surface from west to east at more than 1,500 miles per hour along the path of totality.
Looking Back at an Eclipsed Earth
apod.nasa.gov
... Here is what the Earth looks like during a solar eclipse. The shadow of the Moon can be seen darkening part of Earth. This shadow moved across the Earth at nearly 2000 kilometers per hour. ...
Medieval Astronomy from Melk Abbey
apod.nasa.gov
... Discovered by accident, this manuscript page provides graphical insight to astronomy in medieval times, before the Renaissance and the influence of Nicolaus Copernicus, Tycho de Brahe, Johannes Kepler, and Galileo. The intriguing page is from lecture notes on astronomy compiled by the monk Magister Wolfgang de Styria before the year 1490. The top panels clearly illustrate the necessary geometry for a lunar (left) and solar eclipse in the Earth-centered Ptolemaic system. ...
eclipse-explorer.smce.nasa.gov
NASA's eclipse explorer. Just enter your zip code and you'll get details for the eclipse in your area.
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