Astrolabii Declaratio est liber astronomiae et navigii scriptus a Jacobo Koebel anno MDLXXXV. In hoc libro, auctor explicat usum astrolabii, instrumenti astronomici utile ad determinandum altitudinem stellarum et solis, et ad navigandum in mari. Koebel describit partes astrolabii et modos ad conficiendum tabulas astronomicas. Libellus quoque continet tabulas astronomicas et nauticas, quae sunt utiles ad navigandum per oceanum. Astrolabii Declaratio est opus utilissimum ad omnes qui sunt interessati in astronomia et navigio.This Book Is In Latin. This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.