Diese Länge ist auf 1′ en arc genau<supplied xmlns="http://www.tei-c.org/ns/1.0" cert="high">,</supplied> wenn auch in <lb xmlns="http://www.tei-c.org/ns/1.0" />der Breite um mehrere <choice xmlns="http://www.tei-c.org/ns/1.0"> <abbr>Min.</abbr> <expan>Minuten</expan> </choice> gefehlt ist. Nun kenne <lb xmlns="http://www.tei-c.org/ns/1.0" />ich Zeit des Schifs <choice xmlns="http://www.tei-c.org/ns/1.0"> <abbr>u</abbr> <expan>und</expan> </choice> berechne <subst xmlns="http://www.tei-c.org/ns/1.0"> <del rendition="#s">nach</del> <add place="superlinear">aus</add> </subst> dem Stundenwinkel <lb xmlns="http://www.tei-c.org/ns/1.0" />(nach Formel <supplied xmlns="http://www.tei-c.org/ns/1.0" cert="high">(</supplied> <supplied xmlns="http://www.tei-c.org/ns/1.0" cert="high">(</supplied>Cos x × Cos ZS<supplied xmlns="http://www.tei-c.org/ns/1.0" cert="high">)</supplied> / Cos SP<supplied xmlns="http://www.tei-c.org/ns/1.0" cert="high">)</supplied> = Cos y wenn SP = <choice xmlns="http://www.tei-c.org/ns/1.0"> <abbr>dist.</abbr> <expan>distance</expan> </choice> <lb xmlns="http://www.tei-c.org/ns/1.0" /> <choice xmlns="http://www.tei-c.org/ns/1.0"> <abbr>pol.</abbr> <expan>polaire</expan> </choice> ZS = <choice xmlns="http://www.tei-c.org/ns/1.0"> <abbr>Compl.</abbr> <expan>Complément</expan> </choice> der Sternhöhe <choice xmlns="http://www.tei-c.org/ns/1.0"> <abbr>u</abbr> <expan>und</expan> </choice> x–y = Aequa<lb xmlns="http://www.tei-c.org/ns/1.0" break="no" />torialhöhe) die Breite.<note xmlns="http://www.tei-c.org/ns/1.0" place="right" hand="#author">estima<supplied cert="high">:</supplied> <choice> <abbr>lat</abbr> <expan>latitude</expan> </choice>: 15° 7′. 51″</note> Sie ergiebt sich aus 81° 25′ um <lb xmlns="http://www.tei-c.org/ns/1.0" />2 <choice xmlns="http://www.tei-c.org/ns/1.0"> <abbr>h</abbr> <expan>heures</expan> </choice> 42′ 25″ genau 15° 22′ 35. Da das Loch die <lb xmlns="http://www.tei-c.org/ns/1.0" />Länge von 41° 40′ giebt<supplied xmlns="http://www.tei-c.org/ns/1.0" cert="high">,</supplied> so habe ich dieselbe <lb xmlns="http://www.tei-c.org/ns/1.0" />noch einmal geprüft: <choice xmlns="http://www.tei-c.org/ns/1.0"> <orig>☉</orig> <reg>Sonne<supplied cert="high">nhöhen</supplied></reg> </choice>