Contributions to Solar Physics: I. A Popular Account of Inquiries Into the Physical Constitution of the Sun, with Special Reference to Recent Spectroscopic Researches; II. Communications to the Royal Society of London, and the French Academy of Sciences, with NotesMacmillan and Company, 1874 - 676 Seiten |
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Seite xix
... slit , showing reflect- 51 Path of light through reflecting Vessel with glass sides for study . ing the absorption of liquids . 181 Absorption spectra of iodine and nitrous fumes . Absorption of magenta and blood Absorption of various ...
... slit , showing reflect- 51 Path of light through reflecting Vessel with glass sides for study . ing the absorption of liquids . 181 Absorption spectra of iodine and nitrous fumes . Absorption of magenta and blood Absorption of various ...
Seite xx
... slit 216 87. Line D3 ( yellow ) , with radial slit 88. Line F ( blue - green ) , with radial slit 89. Line C , with tangential slit . 90. Spectrum of chromosphere , show- ing the different lengths of the lines of hydrogen , sodium , and ...
... slit 216 87. Line D3 ( yellow ) , with radial slit 88. Line F ( blue - green ) , with radial slit 89. Line C , with tangential slit . 90. Spectrum of chromosphere , show- ing the different lengths of the lines of hydrogen , sodium , and ...
Seite xxi
... Slit for comparing spectra of centre and limb . 159. Path of ray Mr. Hastings ' arrangement for comparison of spectra • Secchi's Merz - prism before the object - glass in cell . . 573 PAGE . • 576 576 577 . 582 491 163 . 582 146. Uprush ...
... Slit for comparing spectra of centre and limb . 159. Path of ray Mr. Hastings ' arrangement for comparison of spectra • Secchi's Merz - prism before the object - glass in cell . . 573 PAGE . • 576 576 577 . 582 491 163 . 582 146. Uprush ...
Seite 72
... slit ) greatly enfeebled in brilliancy . All the absorption - bands visible in the spectrum of the absorption photosphere , above and below , were visible in the spectrum of spots of the spot ; but they appeared thicker where they ...
... slit ) greatly enfeebled in brilliancy . All the absorption - bands visible in the spectrum of the absorption photosphere , above and below , were visible in the spectrum of spots of the spot ; but they appeared thicker where they ...
Seite 118
... slit , will be spread out into a long band ; the light will cover a large area and will become diluted in consequence . But the light from the prominences ( coming through the same slit ) will , on the contrary , scarcely be spread out ...
... slit , will be spread out into a long band ; the light will cover a large area and will become diluted in consequence . But the light from the prominences ( coming through the same slit ) will , on the contrary , scarcely be spread out ...
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Häufige Begriffe und Wortgruppen
absorption angle Ångström appearance astronomers Balfour Stewart bien bright lines brilliant changes CHAP chromosphere cloud coincident colour Comptes Rendus continuous spectrum corona dark lines disc dispersion distance energy envelope evidence F line fact faculæ Father Secchi Frankland Fraunhofer lines gaseous give glass heat height Huggins hydrogen hydrogen lines incandescent indicated instrument j'ai Janssen jets John Herschel Kirchhoff layers les raies less light lignes Lockyer luminous magnesium masses ment method moon motion nences NOTE observed PAPER penumbra period phenomena photographs photosphere polariscope polarization poles portion position prism prominences qu'il question radiation raie rays referred refrangible region régions remark Respighi rotation Royal Society seen side slit sodium solar atmosphere solar spectrum Soleil spectra spectroscope sphere spots stratum substance sun-spots sun's atmosphere sun's limb taches telescope temperature tion total eclipse tube umbra vapour violet visible wave-length widening
Beliebte Passagen
Seite 96 - Yet still, from time to time, vague and forlorn, From the soul's subterranean depth upborne As from an infinitely distant land, Come airs, and floating echoes, and convey A melancholy into all our day.
Seite 207 - I am purposing them, to be considered of and examined, an account of a philosophical discovery which induced me to the making of the said telescope ; and I doubt not but will prove much more grateful than the communication of that instrument ; being in my judgment the oddest, if not the most considerable detection which hath hitherto been made in the operations of nature.
Seite 17 - This gives the impression of a division between the luminous masses, especially with a comparatively low power, which, however, when best seen with high powers, is found to be never complete.
Seite 437 - ... red flames" which total eclipses have revealed to us in the sun's atmosphere, although they escape all other methods of observation at other times?
Seite 521 - ... we were in a position to determine the atmospheric pressure operating in a prominence in which the red and green lines are nearly of equal width, and in the chromosphere, through which the green line gradually expands as the sun is approached. With regard to the higher prominences, we have...
Seite 394 - In place of the quiet cloud I had left, the air, if I may use the expression, was filled with flying <! t'bris — a mass of detached vertical fusiform filaments, each from 10" to 30" long by 2" or 3" wide, brighter and closer together where the pillars had formerly stood, and rapidly ascending.
Seite iii - CONTRIBUTIONS TO SOLAR PHYSICS. By J. NORMAN LOCKYER, FRSI A Popular Account of Inquiries into the Physical Constitution of the Sun, with especial reference to Recent Spectroscopic Researches. II. Communications to the Royal Society of London and the French Academy of Sciences, with Notes. Illustrated by 7 Coloured Lithographic Plates and 175 Woodcuts. Royal 8vo. cloth, extra gilt, price 3u.
Seite 70 - A few seconds before the commencement of the totality, the stars burst out, and surrounding the dark Moon on all sides is seen a glorious halo, generally of a silver-white light; this is called the Corona. It is slightly radiated in structure, and extends sometimes beyond the Moon to a distance equal to our satellite's diameter. Besides this, rays of light, called Aigrettes, diverge from the Moon's edge, and appear to be shining through the light of the corona.
Seite 17 - ... do at the edge of a deep hole of clear water. The exceedingly definite shape of these objects; their exact similarity one to another; and the way in which they lie across and athwart each other (except where they form a sort of bridge across a spot, in which case they seem to affect a common direction, that, namely, of the bridge itself),—all these characters seem quite repugnant to the notion of their being of a vaporous, a cloudy, or a fluid nature.
Seite 213 - F line were phenomena depending on and indicating varying pressures, we were in a position to determine the atmospheric pressure operating in a prominence in which the red and green lines are nearly of equal width, and in the chromosphere, through which the green line gradually expands as the sun is approached.