To the extent possible under law, the Text Creation Partnership has waived all copyright and related or neighboring rights to this keyboarded and encoded edition of the work described above, according to the terms of the CC0 1.0 Public Domain Dedication ( http://creativecommons.org/publicdomain/zero/1.0/). This waiver does not extend to any page images or other supplementary files associated with this work, which may be protected by copyright or other license restrictions. Please go to http://www.textcreationpartnership.org/ for more information.
This text has been selected for inclusion in the EEBO-TCP: Navigations collection, funded by the National Endowment for the Humanities.
In the Triangle Z P a, it is the Angle at P that is to be found. Wherefore lay a Ruler from the Point P to the Point a, and it will cut the Meridian Circle in t: So the Arch t AE, being mea∣sured upon your Line of Chords, will be found to contain 95 d. 52 min. which is the Hour from the Meridian; and the Arch t ae, being measured, will contain 84 degr. 8 min. which is the
Hour from Midnight. Also the Arch t S, being measured upon the Chord, will contain 5 degr. 52 min. the Hour from Six.
| d. | m. | hours | m. | |||
| The Arch | t AE | 95 | 52 | converted in∣to Time is | 6 | 23 |
| t ae | 84 | 08 | 5 | 36 | ||
| t S | 05 | 52 | 0 | 23 |
To convert Degrees and Minutes of the Aequinoctial into Hours and Minutes of Time: Note that 15 Degrees of the Aequi∣noctial make one Hour of Time, and one Degree 4 Minutes of Time. Therefore divide the Degrees of the Aequinoctial by 15, the Quotient is Hours; and multiply the Degrees by 4, and the Product will be Minutes of Time.—So the Hour from the Me∣ridian being 95 degr. 52 min. divide 95 by 15, the Quotient is 6 Hours, and 5 remaining, which 5 multiply by 4, and it makes 20 Minutes of Time, and the 52 min. make 3 minutes of Time and more, almost 4 minutes. So that 95 degr. 52 min. of the Aequinoctial do make in Time 6 hours and almost 24 minutes.