History of Astronomy |
From inside the book
Results 1-3 of 12
Page 144
He divided these into four principal classes, which have been of the greatest
service. Half of his stars belonged to the first class, including Sirius, Vega,
Regulus, Altair. The characteristic feature of their spectra is the strength and
breadth of the ...
He divided these into four principal classes, which have been of the greatest
service. Half of his stars belonged to the first class, including Sirius, Vega,
Regulus, Altair. The characteristic feature of their spectra is the strength and
breadth of the ...
Page 145
Already there are plenty of people ready to lay down arbitrary assumptions about
the lessons to be drawn from stellar spectra. Some say that they know with
certainty that each star begins by being a nebula, and is condensed and heated
by ...
Already there are plenty of people ready to lay down arbitrary assumptions about
the lessons to be drawn from stellar spectra. Some say that they know with
certainty that each star begins by being a nebula, and is condensed and heated
by ...
Page 150
... 132; binaries, 132, 135; new, 19, 36, 137; catalogues of, 19, 36, 139 ; spectra
of, 143 Stewart, B., 2, 100 Stokes, G. G., 91 Stone, E. J., 139 Struve, C. L., 130
Struve, F. G. W., 88, 115, 128, •33 Telescopes invented, 47, 86 ; large, 88 Temple
, ...
... 132; binaries, 132, 135; new, 19, 36, 137; catalogues of, 19, 36, 139 ; spectra
of, 143 Stewart, B., 2, 100 Stokes, G. G., 91 Stone, E. J., 139 Struve, C. L., 130
Struve, F. G. W., 88, 115, 128, •33 Telescopes invented, 47, 86 ; large, 88 Temple
, ...
What people are saying - Write a review
We haven't found any reviews in the usual places.
Contents
Ancient AstronomyChinese and Chaldeans | 7 |
Ancient Greek Astronomy | 13 |
The Reign of Epicycles From Ptolemy | 23 |
3 other sections not shown
Other editions - View all
Common terms and phrases
accurate observations Airy ancient astro Astronomer Royal astronomical units attraction axis bright calculations Cape Cassini catalogue centre century Chinese comet compute Copernicus diameter discovered discovery earth eclipse Egyptian epicycles equatoreal error excentric explain fact fixed stars Galileo Greenwich Halley Halley's comet heavenly bodies heavens heliometer Hipparchus Huggins hydrogen hypothesis instruments Johann Kepler John Herschel Jupiter Jupiter's Kepler Lick Observatory light line of sight lunar Mars mathematical mean distance mean motion measured Mercury meteor miles a second moon moon's nebula Newton nodes noticed Observatory orbit parallax perihelion period photographic physical planet planetary pole position predicted proper motion proved Ptolemy R. S. Phil recognised records refractor retrograde retrograde motion revolve round ring rotation satellites seems seen showed Sirius solar system spectra spectroscope spectrum sphere spots stellar sun-spots supposed tables telescope theory tion Trans Tycho Brahe Uranus velocity Venus Verrier zenith