Letters on Astronomy / in which the Elements of the Science are Familiarly Explained in Connection with Biographical Sketches of the Most Eminent Astronomers
PATH OF BIELA'S COMET.
FAMILIARLY EXPLAINED IN CONNECTION WITH BIOGRAPHICAL
SKETCHES OF THE MOST EMINENT ASTRONOMERS.
WITH NUMEROUS ENGRAVINGS.
PROFESSOR OF NATURAL PHILOSOPHY AND ASTRONOMY IN YALE COLLEGE
INCLUDING THE LATEST DISCOVERIES.
329 & 331 PEARL STREET,
FRANKLIN SQUARE.
1855.
Entered according to Act of Congress, in the year 1840, by
Marsh, Capen, Lyon, and Webb,
in the Clerk's Office of the District Court of Massachusetts.
Denison Olmsted
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Revised Edition.
NEW YORK:
ADVERTISEMENT
TO THE
REVISED EDITION.
CONTENTS.
INTRODUCTORY OBSERVATIONS.
DOCTRINE OF THE SPHERE.
ASTRONOMICAL INSTRUMENTS.——TELESCOPE.
TELESCOPE CONTINUED.
OBSERVATORIES.
TIME AND THE CALENDAR.
FIGURE OF THE EARTH.
DIURNAL REVOLUTIONS.
PARALLAX AND REFRACTION.
THE SUN.
ANNUAL REVOLUTION.—SEASONS
LAWS OF MOTION.
TERRESTRIAL GRAVITY.
THE MOON.
THE MOON.—PHASES.—HARVEST MOON.—LIBRATIONS.
MOON'S ORBIT.—HER IRREGULARITIES.
ECLIPSES.
LONGITUDE.—TIDES.
PLANETS.—MERCURY AND VENUS.
SUPERIOR PLANETS: MARS, JUPITER, SATURN, AND URANUS.
COPERNICUS.—GALILEO.
SATURN.—URANUS.—ASTEROIDS.
THE PLANETARY MOTIONS.——KEPLER'S LAWS.——KEPLER.
COMETS.
COMETS, CONTINUED.
METEORIC SHOWERS.
FIXED STARS.
FIXED STARS CONTINUED.
SYSTEM OF THE WORLD
NATURAL THEOLOGY.
RECENT DISCOVERIES.
RECENT DISCOVERIES.
FOOTNOTES:
Transcriber's Notes