The Study of Astronomy, adapted to the capacities of youth: In twelve familiar dialogues, between a tutor and his pupil: explaining the general phænomena of the heavenly bodies, the theory of the tides, &c.Stedman, John, teacher of astronomy
Science
The Study of Astronomy, adapted to the capacities of youth: In twelve familiar dialogues, between a tutor and his pupil: explaining the general phænomena of the heavenly bodies, the theory of the tides, &c.
Stedman, John, teacher of astronomy
Astronomy -- Juvenile literature -- Early works to 1800
TUTOR. You must remember, that when the earth is in any sign, as seen
from the sun, the sun will be in the opposite sign, as seen from the
earth: for instance, if the earth be in Aries, the sun will be in Libra;
if in Taurus, the sun will be in Scorpio, &c. therefore, as by the
earth’s annual motion, the sun _appears_ to move, we always speak of the
sun’s, not the earth’s place, in the ecliptic.—You do not seem to
understand me?
PUPIL. Not perfectly, Sir.
TUTOR. Take this orange, and put it in the middle of the round table
before us, and place an apple on the opposite side next the window: the
orange may represent the sun, the apple the earth, and the window the
sign Aries. Now go round the table to the apple; look at the orange, and
tell me to what part of the room the eye will be directed.
PUPIL. To the part opposite to the window, Sir.
TUTOR. If then you suppose the door, which is opposite to the window, to
be the sign Libra, the sun will be in Libra when the earth is in
Aries—will it not?
PUPIL. It is very plain.
TUTOR. I shall now give you a table of the signs, their characters, the
corresponding months, and the days of the month the sun enters each
sign, by means of which, if you reckon a degree for a day, you may find
the sun’s place, nearly, for any day in the year.
PUPIL. This will give me much pleasure, and I shall be happy to have it.
THE TABLE.
NORTHERN SIGNS.
Aries, Taurus, Gemini, Cancer, Leo, Virgo.
♈ ♉ ♊ ♋ ♌ ♍
March, April, May, June, July, Aug.
20, 20, 21, 21, 23, 23.
SOUTHERN SIGNS.
Libra, Scorpio, Sagittarius, Capricorn, Aqua. Pisces.
♎ ♏ ♐ ♑ ♒ ♓
Sept. October, November, Decem. Jan. Feb.
23, 23, 21, 21, 20, 18.
PUPIL. Why do you write northern and southern signs, Sir?
TUTOR. Because they are situated north and south of a circle in the
heavens, called the equinoctial, which circle crosses the ecliptic in
the points Aries and Libra, and extends 23-1/2 degrees on each side of
it; and which I shall have occasion to mention to you another time.
PUPIL. When you think proper, Sir, I shall be glad to have it explained
to me.
TUTOR. Look at your table, and tell me what sign and what degree the sun
is in the 30th of March, and 20th of October.
PUPIL. The sun enters Aries the 20th of March, of course he must be 10
degrees in that sign the 30th; and, as he does not enter Scorpio till
the 23d of October, he must want three degrees of completing the sign
Libra; he must therefore, on the 20th of October, be in 27 degrees of
Libra.
TUTOR. Very well.—Do you learn the table, as you will have a farther use
for it.
------------------------------------------------------------------------
Public-domain text, read in full here on John Shaqi.
Reviews
Reviews
No reviews yet
Be the first to share your thoughts on this work.
Join the Discussion
Join the discussion
Sign in to leave a comment or review.
Sign InorCreate an account