Proceedings of the American Philosophical Society Held at Philadelphia for Promoting Useful Knowledge, Томи 11 – 12American Philosophical Society, 1967 |
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Сторінка 204
... plate of the camera by a Huy- ghenian eye - piece , the lenses of which were specially computed to give the least aberration when they formed an image of the sun in the camera of 2.04 inches diameter . The image of a reticule of two ...
... plate of the camera by a Huy- ghenian eye - piece , the lenses of which were specially computed to give the least aberration when they formed an image of the sun in the camera of 2.04 inches diameter . The image of a reticule of two ...
Сторінка 205
... plate - glass , taken from the origi- nal negatives with an orthoscopic lens , and also copies on paper enlarged to ... plate we deduced 13h . 1m . 57.3s . , which is 4s . before contact as observed by Dr. Gould , and 6th of a second ...
... plate - glass , taken from the origi- nal negatives with an orthoscopic lens , and also copies on paper enlarged to ... plate we deduced 13h . 1m . 57.3s . , which is 4s . before contact as observed by Dr. Gould , and 6th of a second ...
Сторінка 207
... plate of the totality series , taken 17.1 seconds after second contact ; those on the western limb of the sun were determined from the last plate of totality , taken 50 seconds be fore third contact . The angles of position of ...
... plate of the totality series , taken 17.1 seconds after second contact ; those on the western limb of the sun were determined from the last plate of totality , taken 50 seconds be fore third contact . The angles of position of ...
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