LOW ALTITUDE REFRACTION CORRECTION

Captain Raleigh C. Willems

Peer Reviewed

Abstract:	sunset and sunrise in the lower latitudes, it is often necessary to use very low or even Most tabular systems of solving the celestial minus altitudes of the sun to observe, compute, triangle do not use altitudes below ten degrees. The most practical table for use with low altitude observations is Dreisonstock, H.O. 208. and plot a celestial line of position. This table can be used with any declination, latitude, hour angle, or altitude.
Published in:	NAVIGATION: Journal of the Institute of Navigation, Volume 3, Number 1&2
Pages:	41 - 45
Cite this article:	Willems, Captain Raleigh C., "LOW ALTITUDE REFRACTION CORRECTION", NAVIGATION: Journal of The Institute of Navigation, Vol. 3, No. 1&2, 1951, pp. 41-45.
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