History of Astronomy |
From inside the book
Results 1-5 of 12
Page 83
... photographic plates of an eighth satellite of Jupiter , at an enormous distance from the planet . From obser- vations in the early part of 1908 , over a limited arc of its orbit , before Jupiter approached the sun , Mr. Cowell computed ...
... photographic plates of an eighth satellite of Jupiter , at an enormous distance from the planet . From obser- vations in the early part of 1908 , over a limited arc of its orbit , before Jupiter approached the sun , Mr. Cowell computed ...
Page 89
... photographic refractor , and the Thompson equatoreal by Grubb , carrying both the 26 - inch photographic refractor and the 30 - inch reflector . At the Cape of Good Hope we find Mr. Frank McClean's 24 - inch refractor , with an object ...
... photographic refractor , and the Thompson equatoreal by Grubb , carrying both the 26 - inch photographic refractor and the 30 - inch reflector . At the Cape of Good Hope we find Mr. Frank McClean's 24 - inch refractor , with an object ...
Page 102
... photographic plate . Just in front of this plate there is another slit parallel to the first , in the position where the image of the first slit formed by the K line of calcium falls . Thus is obtained a photo- graph of the section of ...
... photographic plate . Just in front of this plate there is another slit parallel to the first , in the position where the image of the first slit formed by the K line of calcium falls . Thus is obtained a photo- graph of the section of ...
Page 105
... photographic records has been shown to depend upon the phase of the sun- spot period . During the sun - spot maximum the corona seems most developed over the spot - zones - i.e . , neither at the equator nor the poles . The four great ...
... photographic records has been shown to depend upon the phase of the sun- spot period . During the sun - spot maximum the corona seems most developed over the spot - zones - i.e . , neither at the equator nor the poles . The four great ...
Page 108
... photographic atlas by Loewy and Puiseux . The details of the moon's surface require for their discussion a whole book , like that of Neison or the one by Nasmyth and Carpenter . Here a few words must suffice . Mountain ranges like our ...
... photographic atlas by Loewy and Puiseux . The details of the moon's surface require for their discussion a whole book , like that of Neison or the one by Nasmyth and Carpenter . Here a few words must suffice . Mountain ranges like our ...
Other editions - View all
Common terms and phrases
accurate observations Airy astro Astronomer Royal Astronomia Nova astronomical units attraction axis bright calculations Cape Cassini catalogue centre century comet compute Copernicus diameter discovered discovery earth eclipse epicycles equatoreal error excentric explain fact fixed stars Galileo Greenwich Halley heavenly bodies heavens heliometer Hipparchus Huggins hydrogen hypothesis instruments Johann Kepler John Herschel Jupiter Jupiter's Kepler Laplace Lick Observatory light line of apses line of sight lunar Mars mathematical mean distance mean motion measured Mercury meteor method miles a second moon moon's nebulę Newton Observatory orbit parallax perihelion period photographic physical planet planetary pole position predicted proper motion proved Ptolemy R. S. Phil records refractor retrograde retrograde motion revolution revolve round ring rotation round the sun satellites seems showed Sirius solar system spectra spectroscope spectrum spots stellar sun-spots sun's surface supposed tables telescope theory tion Trans Tycho Brahe Uranus velocity Venus Verrier zenith