Article ID: CBB080506663

Fotheringham’s 1920 Accelerations of the Sun and Moon Revisited (2020)

unapi

One hundred years ago, J.K. Fotheringham famously derived the “accelerations” of the Sun and Moon from the reports of 11 classical solar eclipses. We review critically the reliability of these eclipse reports and rework his diagrammatic method, treating the deceleration of the Earth’s rotation as an unknown, rather than the “acceleration” of the Sun. There is some serendipity in his choice of the critical eclipses, which opportunely facilitated his derivation of seemingly accurate results for the accelerations.

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Authors & Contributors
Stephenson, F. Richard
Morrison, Leslie V.
Hohenkerk, Catherine Y.
Rose Ann B. Bautista
Tanner, Brian K.
Ryan Manuel D. Guido
Journals
Journal for the History of Astronomy
Journal of Astronomical History and Heritage
Archive for History of Exact Sciences
Ziran Kexueshi Yanjiu (Studies in the History of Natural Sciences)
Sciamvs: Sources and Commentaries in Exact Sciences
Revue d'Histoire des Sciences
Publishers
Princeton University Press
Oxford University Press
MagaVelda Press
Cambridge University Press
Concepts
Astronomy
Sun
Moon
Eclipses; transits; occultations; conjunctions
Solar system; planets
Cosmology
People
Gervase of Canterbury
Mabel Cook Cole
Hipparchus
Aristarchus, of Samos
Peurbach, Georg von
Regiomontanus
Time Periods
Ancient
Medieval
20th century, early
19th century
17th century
15th century
Places
Greece
China
India
Middle and Near East
Thailand
Myanmar (Burma)
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