隼鹰 发表于 2025-4-1 04:34:37

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Hyaluronic-Acid 发表于 2025-4-1 07:56:28

Spectral Brightness of the Sky,le results, for example, , were obtained only for a small set of parameters using visual and photoelectric photometers with wideband filters. In a number of cases, transmittance was not determined , and the results were given in relative units (readings from various points in the sky were tied to the zenith).

灰心丧气 发表于 2025-4-1 13:43:44

The Height of the Twilight Ray, When observations are made in direction BM, the height of the twilight layer in this direction is the difference h = OM −R, i.e., the height above the earth’s surface of the point of intersection of the line of sight BM and the twilight ray SM.

explicit 发表于 2025-4-1 16:56:16

Erstes Kapitel Stetige Konvergenz at 25 frames/sec. It was also necessary to create, if only rather approximately, a method of determining a quality criterion for an astronomical (in this case, a point) image and, thereby, to be able to compare quantitatively the changes in the structure of the image caused by scintillation.

GONG 发表于 2025-4-1 22:02:46

Some Statistical Determinations of the Instability of Television Images of Stars, at 25 frames/sec. It was also necessary to create, if only rather approximately, a method of determining a quality criterion for an astronomical (in this case, a point) image and, thereby, to be able to compare quantitatively the changes in the structure of the image caused by scintillation.

使厌恶 发表于 2025-4-2 02:41:41

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Geyser 发表于 2025-4-2 06:10:20

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查看完整版本: Titlebook: Atmospheric Optics; Nikolai B. Divari (Chairman) Book 1970 Consultants Bureau, New York 1970 optics