 | John Hamilton Moore - Nautical astronomy - 1807 - 586 pages
...169°; each of the fubdivifions, from ю to 70, are 2 degrees, and from thence to go, it is fingle degrees, and from thence to the end, each degree is divided into 15 minutes. 5thly. The line of tangents, marked (Tang.) begins at the left hand, as do the fines ; from thence... | |
 | John Hamilton Moore - Nautical astronomy - 1807 - 676 pages
...If 169"; each of the fubdivifions, from IO to 30, are 2 degrees, and from thence to qo, it is fingle degrees, and from thence to the end, each degree is divided into 15 minutes. 5thly. The line of tangents, marked (Tang.) begins at the left hand, as do the fines ; from thence... | |
 | John Hamilton Moore - Nautical astronomy - 1810 - 662 pages
...where is a brass centre pin, here, and in all lines under it, are called degrees. hand — about 169°; each of the subdivisions, from 10 to 30, are 2 degrees,...to the end, each degree is divided into 15 minutes. Sthly. The line of tangents, marked (Tang.) begins at the left hand, as do the sines ; from thence... | |
 | Nautical astronomy - 1821 - 708 pages
...of the subdivisions, from 10 to 30, is in general two degrees, from thence to 90 is single degrees, from thence to the, end, each degree is divided into 15 minutes. 6thly. The line of tangents, marked (Tang.) corresponding to the logtangents of the degrees of the... | |
 | George Curtis - Lumber - 1824 - 132 pages
...the subdivisions from 10 to 30 is, in general two degrees ; from thence to 90, is single degrees ; from thence to the end, each degree is divided into 15 minutes. 6. The line of Tangents, (marked T-ANG) corresponding to the Log. Tangents of the degree* of the Quadrant,... | |
 | Nathaniel Bowditch - 1846 - 854 pages
...the sulxlivisions, from 10 to 30, is in general two degrees; from thence to 90 is single degrees ; from thence to the end, each degree is divided into 15 minutes. 6thly. The line of tangents, marked (Tang.), corresponding to the log. tangents of the degrees of the... | |
 | James Pryde - Navigation - 1867 - 506 pages
...of the subdivisions, from ID to 30, is in general two degrees, from thence to 90 is single degrees, from thence to the end, each degree is divided into 15 minutes. 96. The line of tangents, marked Tang., corresponding to the log. tangents of the degrees of the quadrant,... | |
 | Nathaniel Bowditch - Nautical astronomy - 1888 - 704 pages
...the subdivisions, from ю to 30, is in general two degrees ; from thence to 90 is single degrees ; from thence to the end each degree is divided into 15 minutes. othly. The line of tangents, marked (Tang.), corresponding 1.0 the log. tangents of the degrees of... | |
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... degrees of the quadrant, begins at the right hand against 90° on the sines, and from thence is numbered towards the left hand thus : 10, 20... 