i §9

Astronomy.k\^ 0r ^ ern Parts will be gradually turn’dit. ar ^ s the Sun, and the Southern Parts from-^^bence the Sun's Rays will fall moret}, r Ql0rc directly on the former, and passa less Quantity of the Atmo «*.but in the Southern Parts, the re-.

4 r Also in the Northern Parts, the^ of the Parallels in the enlightened\{f^ ers W *P continually increase, and' 7 - - - -Wrasse, shewing the

\\{^. l3ere w Pl continuant

t ^ C one ^ ecrea ^ c » sbewing the

os' m Il(: increase of the Days, and Decrease|re^ f e ^%bts: all which will be in theirto q * degree when the Sun is arrivedan d therefore that will be thek 0f .^ °f that Season we call Summer, inern Latitude ; but in Southern Lati ».

(t 3o. j

V ? . !u r °m this Theorem it will be easy to compute,fc^test 2 ’ or the Time from Noon when the Heattif ‘ r ed e ° n an y given Dav. For Example : Let it be0r the Day of the Summer Solstice in the' La-f [J5 5 1 p 30/, when the Declination is 23 0 30'.v 0 s , t Ce (by Art. 24, 25.) we have a ~ 2,146,r ’ 0,5709, S-str — 0,883, and ac —

^ Sit Wefo ; - e l±i. = A =0,7207,

I

Whence by

-ucreioie --—

o Verms ‘of the Series we Ml have a» -ot. Therefore

th, *

A

Therefore fay

v teie (v ^r — s X A 3 — 0,7862. 1

,'^umference 6,283 360° :: 0,7862 : 4,

"-wntr u Q to an Hour, itap-.

it Three Clock in

^ncumference b, 22 Z • e>"Whence, by alloV« n S 1 k ■C 4 ^ at th hotteJl'Time ‘f th D)

tud*'