Page:A short history of astronomy(1898).djvu/34
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Contents
PAGE
| § 297. | The surfaces of Mars, Jupiter, and Saturn : the canals on Mars : Maxwell's theory of Saturn's rings : the rotation of Mercury and of Venus |
383 |
| § 298. | The surface of the sun : Schwabe's discovery of the periodicity of sun-spots : connection between sun-spots and terrestrial magnetism : Carrington's observations of the motion and distribution of spots : Wilson's theory of spots |
385 |
| §§ 299-300. | Spectrum analysis : Newton, Wollaston, Fraunhofer, Kirchhoff : the chemistry of the sun |
386 |
| § 301. | Eclipses of the sun : the corona, chromosphere, and prominences : spectroscopic methods of observation |
389 |
| § 302. | Spectroscopic method of determining motion to or from the observer : Dopplers principle : application to the sun |
391 |
| § 303. | The constitution of the sun |
392 |
| §§ 304-305. | Observations of comets : nucleus : theory of the formation of their tails : their spectra : relation between comets and meteors |
393 |
| §§ 306-308. | Sidereal astronomy : career of John Herschel : his catalogues of nebulae and of double stars : the expedition to the Cape : measurement of the sun's heat by Herschel and by Pouillet |
396 |
| § 309. | Double stars : observations by Struve and others : orbits of binary stars |
398 |
| § 310. | Lord Rosse's telescopes: his observations of nebulae : revival of the "island universe" theory |
400 |
| § 311. | Application of the spectroscope to nebulae : distinction between nebulae and clusters |
401 |
| § 312. | Spectroscopic classification of stars by Secchi : chemistry of stars : stars with bright-line spectra |
401 |
| §§ 313-314. | Motion of stars in the line of sight. Discovery of binary stars by the spectroscope : eclipse theory of variable stars |
402 |
| § 315. | Observations of variable stars |
403 |
| § 316. | Stellar photometry : Pogson's light ratio : the Oxford, Harvard, and Potsdam photometries |
403 |
| § 317. | Structure of the sidereal system : relations of stars and nebulae |
405 |