Practical Talks by an AstronomerGood Press, 2021 M05 19 - 117 pages This is a concise work on several elements concerning the subject of astronomy. It's a perfect book for beginners in astronomy that introduces them to telescopes, planets, stars, skies, and celestial maps. The American astronomer and the author of this work, Harold Jacoby, described the topics in simple and easy-to-understand language. Jacoby made many observations of celestial occurrences such as lunar and solar eclipses. He was popular in Europe and America and was a member of many scientific groups. Contents include: Navigation at Sea The Pleiades The Pole-Star Nebulæ Temporary Stars Galileo The Planet of 1898 How to Make a Sun-Dial Photography in Astronomy Time Standards of the World Motions of the Earth's Pole Saturn's Rings The Heliometer Occultations Mounting Great Telescopes The Astronomer's Pole The Moon Hoax The Sun's Destination |
Contents
ILLUSTRATIONS | |
NEBULÆ | |
PHOTOGRAPHY IN ASTRONOMY | |
MOTIONS OF THE EARTHS POLE | |
THE ASTRONOMERS POLE | |
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Common terms and phrases
180 degrees actually Andromeda nebula astronomical observations astronomical transit bright called celestial celestial pole centre chronometer circle clock constellation cosmic course determination dial direction discovery distance earth error exact exposure fact faint field of view Galileo Greenwich heavenly bodies heavens heliometer Herschel's Hipparchus imagine important inches instrument interesting Jupiter Keeler large number latitude law of gravitation lens Lick Observatory light longitude magnitude mark means measure meridian meridian circle method minor planets moon motion moving navigation nebula night noon object observatory observer's obtain once orbit ordinary parallax pass plate Pleiades polar motion pole pole-star position possible precision problem ring rotation Rutherfurd Saturn scientific seen shadow simply solar system space spectroscope stellar stellar distances sun-dial surface Table of Contents telescope's temporary star theory things three-cornered piece to-day tube turning Uranus Victor Hirtzler visible watch waves whole Yerkes Observatory