cover image: Observations taken at Dumraon  Behar India during the Eclipse of the 22nd January 1898

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Observations taken at Dumraon Behar India during the Eclipse of the 22nd January 1898

1899

Of two square tubes hinged under the grating and forming the body of the camera the first directed towards the Sun furnished light ; the other received the spectrum and carried the plate-holder. [...] The reasons of such divergence may be of two kinds : personal due to the relative keenness of the observer's eyes the precautions he took and the means of observtion at his disposal ; or local and depending on the position of the station at which the observation was made relatively to the central line. [...] Atmspheric conditions and the situation of a large number of the lookers-on were unfavourable to the observation of a phenomenon so faintly perceptible as the fringes of this eclipse especially as the attention of many. [...] The rapid and visible advance of the Moon's shadow over the surounding country is often another of the striking spectacles accompanying the disappearance of the Sun in a total eclipse. [...] On account of the relative distances of the Sun and the Moon from the Earth at that date the screen cutting off from us le solar rays was very little larger than our luminary itself : the apparent diameter of the Sun being 16' 14.83 and that of the Moon at Dumraon at the present time of totality 16' 35.01".
technology medicine science
Pages
140
Published in
United States
SARF Document ID
sarf.140793
Segment Pages Author Actions
Frontmatter
i-viii Rev V De Campigneulles, S.J. view
Chapter I. Before the Eclipse
1-8 unknown view
Chapter II. The Eclipse
9-27 unknown view
Chapter III. Solar Physics in Connection with Eclipse Wore
28-46 unknown view
Chapter IV. The Spectroscope and its use in Eclipses
47-61 unknown view
Chapter V. Our Results
62-85 unknown view
Chapter VI. Other Stations
86-xxviii unknown view

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