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Darrera modificació: 2024-04-11
Bases de dades: Sciència.cat
Kokott, Wolfgang, "Astronomische Längenbestimmung in der frühen Neuzeit", Sudhoffs Archiv, 79/2 (1995), 165-172.
- Resum
- From antiquity, the use of eclipse times for determining longitude differences on Earth has been well known. A convenient means more readily available is the Moon's motion among the stars and planets. Its successful use depends on the availability of a lunar ephemeris for some reference meridian. The first detailed Ephemerides published in print by Johannes Müller (Regiomontanus) in 1474 have been widely distributed and reprinted; they were well known to the navigators of that period. While based upon the medieval Alfonsine Tables and thus containing the usual systematic errors, the Ephemerides may have yielded results superior to their theoretical accuracy when determining relative longitudes (longitude differences), rather than absolute longitudes referred to a zero meridian.
- Matèries
- Astronomia i astrologia
Fonts
- URL
- https://www.jstor.org/stable/20777497
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