The sextant, its uses and errors will be discussed in the following chapter, however, as we are dealing with position lines, the method used to clear danger marks by the use of the sextant will be explained.
Isixhobo sokulunganwa iimbombo phakathi kwezinto, imisebenzi neempazamo ziyakuxoxwa kwisiqendu esilandelayo, ngapha koko, njengokuba sijongene nencigca yendlela, indlela esetyenzisiweyo ukusisa iimpawu zobungozi ngokusebenzisa isixhobo sokulinganise imbombo iya kwaciswa.