## History of Astronomy |

### From inside the book

Page

By this arrangement the sun was situate mathematically near the centre of the

planetary system, but he did not appear to have any

planets as the centre of their motions. According to Copernicus' sixth book, the ...

By this arrangement the sun was situate mathematically near the centre of the

planetary system, but he did not appear to have any

**physical**connexion with theplanets as the centre of their motions. According to Copernicus' sixth book, the ...

Page

...

Philosophiae Naturalis Principia Mathematica). ... the laws of motion, and carried

his argument, step by step, into every branch of

...

**physical**astronomy was the publication, in 1687, of Newton's Principia (Philosophiae Naturalis Principia Mathematica). ... the laws of motion, and carried

his argument, step by step, into every branch of

**physical**astronomy; giving the**physical**... Page

When Newton applied his law of gravitation to an explanation of the tides he

started a new field for the application of mathematics to

there can be little doubt that, if he could have been furnished with complete tidal ...

When Newton applied his law of gravitation to an explanation of the tides he

started a new field for the application of mathematics to

**physical**problems; andthere can be little doubt that, if he could have been furnished with complete tidal ...

Page

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### Common terms and phrases

accurate observations Airy ancient Astronomer Royal astronomical units axis bright calculations Cape Cassini catalogue centre century Chaldĉans Chinese comet compute Copernicus diameter discovered discovery earth eclipse Egyptian epicycles equatoreal error excentric explain fact fixed stars Galileo Greenwich Halley Halley’s heavenly bodies heavens heliometer Herschel Hipparchus Huggins hydrogen hypothesis instruments invented John Herschel Jupiter Jupiter’s Kepler Laplace Lick Observatory light line of apses line of sight lunar Mars mathematical mean distance measured Mercury meteor miles a second moon nebula Newton Observatory parallax perihelion period photographic physical planet planetary pole position predicted proper motion proved Ptolemy R. S. Phil recognised records refractor retrograde retrograde motion revolution revolving round ring rotation satellites seems seen showed Sirius solar system spectra spectroscope spectrum spots stellar sun-spot sun’s sun’s surface supposed tables telescope theory Trans Tycho Brahe Tychonic system Uranus velocity Venus Verrier zenith