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Articles

1965: Vol. XLII, No. 2

Astrofix by Altitudes of Two Pairs of Stars — One Near Meridian and Another Near Elongation

Soumise
August 11, 2015
Publié-e
2015-08-05

Résumé

With a view to improving upon the existing methods of simultaneous determination of latitude and longitude by equal or arbitrary altitudes and of separate determination of latitude by meridian and circum-meridian altitudes of stars, an attempt has been made in this paper to introduce an alternative method of astrofix from observations of only two pairs of stars — one for latitude near meridian transit and the other for longitude (time) near elongation. This method is claimed to be not only simpler and quicker but also more completely free from the usual errors of both vertical collimation and constant of atmospheric refraction. Apart from its general use in geodetic surveys, the method is also of considerable importance in topographic and hydrographic surveys, and in navigation.