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Joined 2026-09-21 Message
Incoming links: Charles Rundle Davidson
Arthur Eddington Created 2026-10-18 Updated 2026-11-05
Arthur Eddington helped carry out the 1919 eclipse test of general relativity, observing the apparent directions of stars near the eclipsed Sun. He coauthored the resulting report with Frank Watson Dyson and Charles Rundle Davidson.
Comparing stellar positions on eclipse and reference plates tested a small radial displacement. Changes in plate scale and focus could alter the signal, so the report assessed instrumental errors alongside its gravitational interpretation.[ref]
A determination of the deflection of light by the Sun's gravitational field by Frank Watson Dyson and others. 1919 observations and 1920 report: observing arrangements, plate comparisons and inferred solar-limb deflection
Portrait of Arthur Eddington
. George Grantham Bain Collection, Library of Congress, ggbain.38064. Public domain in United States; Commons file notes territorial limits. Source and usage information on the linked Wikimedia file page. Source.
Charles Rundle Davidson Created 2026-10-20 Updated 2026-11-05
Charles Rundle Davidson coauthored the original report of the 1919 Eddington experiment, with Frank Watson Dyson and Arthur Eddington. His contribution belongs to an observational project that compared stellar images taken during a total solar eclipse with reference images.
Comparing stellar positions on eclipse and reference plates tested a small radial displacement. Changes in plate scale and focus could alter the signal, so the report assessed instrumental errors alongside its gravitational interpretation.[ref]
A determination of the deflection of light by the Sun's gravitational field by Frank Watson Dyson and others. 1919 observations and 1920 report: observing arrangements, plate comparisons and inferred solar-limb deflection
Frank Watson Dyson Created 2026-10-18 Updated 2026-11-05
Frank Watson Dyson coauthored the report of the 1919 eclipse observations with Arthur Eddington and Charles Rundle Davidson. The experiment tested the predicted bending of stellar light passing near the Sun.
Comparing stellar positions on eclipse and reference plates tested a small radial displacement. Changes in plate scale and focus could alter the signal, so the report assessed instrumental errors alongside its gravitational interpretation.[ref]
A determination of the deflection of light by the Sun's gravitational field by Frank Watson Dyson and others. 1919 observations and 1920 report: observing arrangements, plate comparisons and inferred solar-limb deflection
Portrait of Frank Watson Dyson
. Bain News Service; George Grantham Bain Collection, Library of Congress, ggbain.30244. Public domain / no known copyright restrictions (PD-Bain). Source and usage information on the linked Wikimedia file page. Source.