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Low-Altitude Astro Sights
Published online by Cambridge University Press: 18 January 2010
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On 13 flights at different heights and outside air temperatures a total of 127 low-altitude sights were taken of the Sun, Moon and planets. The sights were taken with a Kollsman periscopic sextant which uses an illuminated graticule as a datum. Hughes' Tables were used for the calculations and the corrections for refraction taken from the table published in Navigation.
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- Copyright © The Royal Institute of Navigation 1954
References
REFERENCES
1Willems, R. C. (1951). Low altitude refraction correction. Navigation, Los Angeles, 3. 41.Google Scholar
2Hagger, A. J. (1952). The accuracy of bubble sextant observation. This Journal, 5, 380.Google Scholar
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