near Burgos, Spain, 1090–1109 ce. Credit: British Library Board (Add. MS 11695, f108r). The text at the bottom of the miniature, between the dark circle on the left representing a total solar eclipse and the red circle on the right representing a total lunar eclipse, ...
Sky-wave propagation depends on ionospheric reflection, and factors such as solar activity (sunspots, solar flares, geomagnetic activities, sunrise, and sunset), meteorological factors, and solar eclipses affect ionospheric conditions, which lead to propagation errors. However, high-precision timing is...
The Moon is the fastest moving planet (luminary), and it is used extensively for timing in predictive astrology (in progressions, for example), horary astrology (charting the moment a question is posed), and in electional astrology (choosing the best time to do something, such as start a ...
using a variation of their maps that more clearly shows the state borders and color-coded time zones. We started the year in the panhandle of Florida, then the route headed south to the Florida Keys, then north and west to Paris, Texas for the total solar eclipse, then...
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Lunar eclipses illuminate timing and climate impact of medieval volcanism Article Open access 05 April 2023 Decadal-to-centennial increases of volcanic aerosols from Iceland challenge the concept of a Medieval Quiet Period Article Open access 10 April 2024 Tropical volcanoes synchronize eastern Cana...