The English globe being a stabil and immobil one, performing what the ordinary globes do, and much more / invented and described by the Right Honorable, the Earl of Castlemaine ; and now publish't by Joseph Moxon ...

OPERATION XII. To know when the Sun rises and sets.

FIND the Parallel of the Day (to wit that of the 10th of April) and where it cuts the Horizon on the East-side of the Globe, there the Suns place at his Rising will be so that the time of the day appears by the next Hour Circle to be a ve∣ry little past 5 in the morning; and if you cast your eye in the Intersection of the said Circle on the West, you'l find the hour to be almost 7 in the Evening.

This being so, here follow's a very pleasant and useful Opera∣tion,* 1.1 as a Corallary, viz. How to find at what time of the year, and at what Declension the Sun rises or sets, an Hour, or any other space of time, either early or later, than it does at the pro∣posing of the Question: for, if you observe but what Parallel in∣tersects

with the Horizon, on the 4 a Clock morning hour-circle which is an hour earlier than when it rises on the 10. of April, you will find it an Imaginary Parallel, which the next real or mark't one shews to be the Parallel, for the 14. of May and 12. of July, and consequently by the Devisions of the Aequinocti∣al Colure that the then Declension is about 21 Degrees. In like manner you must have look't on the West side of the Globe if you would have had the time of the Sun's setting an hour later than 7; and thus you are still to operate when any other space of time is required.

Notes

• * 1.1

  To find when, and at what declension, the Sun rises or sets earlier or later, accord-