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Vénus - 1882 - Cambridge, Harvard College Observatory,
Massachussetts, Etats-Unis - Edward Charles Pickering (1846-1919)
- nationalité américaine
21622(11)
Pickering, Edward C., Observations of the transit of Venus, December
5 and 6, 1882, made at the Harvard College Observatory, Cambridge,
University Press, 1883. [Proceedings of the American Academy of
Art and Sciences, p. 13-40].
Edward C. Pickering
(1846-1919), directeur de l'Observatoire de l'université
Harvard à Cambridge (Massachusetts), y observe les 4 contacts,
avec d'autres astronomes, dont son frère William Henry Pickering
(1858-1938).
Texte imprimé en anglais (extrait).
© Bibliothèque de l'Observatoire de Paris.
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TEXTE |
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21622(11) |
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Pickering, Edward C., Observations of the transit of Venus,
December 5 and 6, 1882, made at the Harvard College Observatory,
Cambridge, University Press, 1883. [Proceedings of the American
Academy of Art and Sciences, p. 15-40] |
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HARVARD COLLEGE
OBSERVATORY |
PICKERING |
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Observation à Harvard
par Pickering |
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PAGE 15 |
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« The morning of the transit was so cloudy
that there seemed little prospect of observing the contacts ;
but the Sun gradually became visible, and the clouds were
thin enough at the time of ingress to allow observation
of both the first and the second contacts. The first part
of the afternoon was nearly clear, and the third contact
was well seen. A few minutes later the Sun entered a mass
of thin clouds, but was still sufficently well seen for
observation of the last contact. » |
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PAGES 17-19 |
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Résultats des observations des contacts. |
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PAGES 19-24 |
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Instruments employés. |
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PAGES 24-25 |
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Observations dans les autres stations américaines. |
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CAMBRIDGEPORT,
MASSACHUSSETS |
CLARK &
SONS |
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Cette observation américaine est juste mentionnée,
il n'y a aucune autre indication |
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NEW YORK,
EGLISE SAINT-PAUL |
SEARLE |
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Cette observation américaine est juste mentionnée,
il n'y a aucune autre indication. |
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CUBA, LA
HAVANE |
HASSELBRINK |
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Cette observation américaine est juste mentionnée,
il n'y a aucune autre indication |
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PAGES 25-29 |
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Observations photométriques. |
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PAGES 29-40 |
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Observations spectroscopiques, diamètre de Vénus. |
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