Fourteen Weeks in Descriptive Astronomy |
From inside the book
Results 1-3 of 59
Page 81
... sidereal and a synodic revolution , and the planet would come into conjunction twice in each revolution . Since , however , the earth is in motion , it follows that after the planet has completed its sidereal revolution , it must then ...
... sidereal and a synodic revolution , and the planet would come into conjunction twice in each revolution . Since , however , the earth is in motion , it follows that after the planet has completed its sidereal revolution , it must then ...
Page 289
... sidereal day is divided into twenty - four equal portions , which are called sidereal hours , and each of these into sixty portions , termed sidereal min- utes , etc. Astronomical clocks are regulated to keep sidereal time . The day ...
... sidereal day is divided into twenty - four equal portions , which are called sidereal hours , and each of these into sixty portions , termed sidereal min- utes , etc. Astronomical clocks are regulated to keep sidereal time . The day ...
Page 329
... sidereal time ? What is a solar day ? What causes the difference between a sidereal and a solar day ? To how much time is a degree of space equal ? 290. Which is taken as the unit , the solar or the sidereal day ? How long is a solar ...
... sidereal time ? What is a solar day ? What causes the difference between a sidereal and a solar day ? To how much time is a degree of space equal ? 290. Which is taken as the unit , the solar or the sidereal day ? How long is a solar ...
Other editions - View all
Common terms and phrases
ancients angle aphelion appear astronomers atmosphere axis bright brilliant called Capricornus Cassiopeia Celestial Sphere centre circle color comet conjunction constellation Cor Caroli dark density diameter disk earth east ecliptic equal equator equinoctial figure fixed stars full moon globe heat heavenly bodies heavens Hercules Herschel horizon inclined inferior inferior conjunction inferior planet Jupiter latitude length light longitude luminous lunar magnitude Mars mean distance measured Mercury meridian meteors miles moon moon's motion move naked eye nearly nebula Neptune night node north pole obliquity observer orbit parallax pass path penumbra perihelion Perseus planet polar position rays revolve Right Ascension ring rotation satellites Saturn seasons seen shadow shine side sidereal sidereal day solar system space spots summer sun's superior planet supposed surface synodic revolution tance Taurus telescope theory tion Uranus Ursa Major varies velocity Venus vernal equinox visible zenith zodiac