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
accepted accurate ancient appear astronomers attraction bodies bright calculations called catalogue cause centre century Chinese circle comet compared complete Copernicus determined diameter direction discovered discovery distance earth eclipse effect elements enabled epicycles equal error explain fact fixed follow force four Galileo gave give given gravitation heavens held Herschel increased interesting Jupiter Kepler knowledge known later LIBRARIES light lunar Mars mass mathematical mean measured method miles moon moon's motion move Newton noticed object observations Observatory opposition orbit original parallax pass period photographic physical planet planetary pole position predicted progress proper motion proved records researches revolve ring rotation round Royal satellites seems seen showed SIGILLUM solar system spectroscope spectrum stars studied sun's supposed surface tables telescope theory tion trace true Tycho Brahe UNIVERSITY VERITAS