History of Astronomy |
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Page 85
His final result was 92 , 870 , 000 miles , the parallax being 8 ” , 802 ( Cape Obs .
, Vol . VI . ) . So delicate were these measures that Gill detected a minute periodic
error of theory of twenty - seven days , owing to a periodically erroneous ...
His final result was 92 , 870 , 000 miles , the parallax being 8 ” , 802 ( Cape Obs .
, Vol . VI . ) . So delicate were these measures that Gill detected a minute periodic
error of theory of twenty - seven days , owing to a periodically erroneous ...
Page 115
In 1826 Struve measured the diameters of the four satellites , and found them to
be 2 , 429 , 2 , 180 , 3 , 561 , and 3 , 046 miles . In modern times much interest
has been taken in watching a rival to Cassini ' s famous spot . The “ great red spot
...
In 1826 Struve measured the diameters of the four satellites , and found them to
be 2 , 429 , 2 , 180 , 3 , 561 , and 3 , 046 miles . In modern times much interest
has been taken in watching a rival to Cassini ' s famous spot . The “ great red spot
...
Page 130
S was too faint for a spectroscopic measurement , but all the others have been
shown to be approaching us at a rate of twelve to twenty miles a second . The
same has been proved for proper motion , and line of sight motion , in the case of
...
S was too faint for a spectroscopic measurement , but all the others have been
shown to be approaching us at a rate of twelve to twenty miles a second . The
same has been proved for proper motion , and line of sight motion , in the case of
...
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Contents
ANCIENT GREEK ASTRONOMY | 3 |
GALILEO AND THE TELESCOPENOTIONS OF GRAVITY | 46 |
NEWTONS SUCCESSORS HALLEY EULER | 60 |
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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 light lunar Mars mass mathematical mean measured method miles moon moon's motion move nebulæ Newton noted 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 solar system spectroscope spectrum stars studied sun's supposed surface tables telescope theory tion trace true Tycho Brahe UNIVERSITY
Bibliographic information
| Title | History of Astronomy The history of science series |
| Author | George Forbes |
| Publisher | Watts, 1921 |
| Original from | Indiana University |
| Digitized | 5 Aug 2010 |
| Length | 150 pages |
| Export Citation | BiBTeX EndNote RefMan |