The Astrophysical Journal, Volumul 10University of Chicago Press, 1899 "Letters to the Editor" issued as Part 2 and separately paged from v. 148, 1967. Beginning in 2009, the Letters published only online. |
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Pagina 3
... contains nearly all the stars in the present paper , and very little labor was required to bring the data up to 1900 with suf- ficient accuracy . However , these results were used merely as a check , all the computations being based ...
... contains nearly all the stars in the present paper , and very little labor was required to bring the data up to 1900 with suf- ficient accuracy . However , these results were used merely as a check , all the computations being based ...
Pagina 32
... contains the designations of the hydrogen lines , the second the values of the wave - lengths as measured from plates of Rigel , the third the values obtained from Balmer's law , the fourth column gives the difference between the ...
... contains the designations of the hydrogen lines , the second the values of the wave - lengths as measured from plates of Rigel , the third the values obtained from Balmer's law , the fourth column gives the difference between the ...
Pagina 45
... contain the vapors led in from a special vessel in which the liquid was boiled . The hollow radiator was always in the vapors . The arrangement for different temperatures was briefly as follows : 1. 100 ° C . The steam from water ...
... contain the vapors led in from a special vessel in which the liquid was boiled . The hollow radiator was always in the vapors . The arrangement for different temperatures was briefly as follows : 1. 100 ° C . The steam from water ...
Pagina 47
... containing a thermom- eter , presented itself to the slit . The intensity of its spectrum was computed for all the temperatures read and for all the wave - lengths , according to the principles of this research , and was then added to ...
... containing a thermom- eter , presented itself to the slit . The intensity of its spectrum was computed for all the temperatures read and for all the wave - lengths , according to the principles of this research , and was then added to ...
Pagina 52
... contains the summary of the observed values of log J included for the isochromatic lines . The cal- culation of the constants of the straight line for each wave - length yields the values of c , and c2 given below them , the means of ...
... contains the summary of the observed values of log J included for the isochromatic lines . The cal- culation of the constants of the straight line for each wave - length yields the values of c , and c2 given below them , the means of ...
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absorption aperture apparatus appear astronomers ASTROPHYSICAL JOURNAL axis bands blackening Board of Visitors bolometer bright lines brighter camera carbon catalogue cents chromosphere cluster Coin comparison compound spectrum corona corresponding curve density determined diameter disk displacement eclipse electrodes employed equal error exposure faint stars Fe lacking focal length given gives Harvard College Observatory hydrogen lines inches instrument intensity investigation Keeler Lick Observatory light line of sight luminosity magnitude maximum mean measured mercury vapor Messier 13 metallic meteors micrometer mirror Morris Travers Naval Observatory objective observations obtained orbit oxygen photographs photometric Pickering plate position Potsdam pressure prism Professor radiation rays refractor region ring nebula Scheiner screw slit spark spectra spectrograph spectroheliograph spectroscope stellar telescope temperature tenth-meters tion trum tube University of Chicago Ursae vanadium Variable Stars Variable Velocity visual W. W. Campbell wave-lengths wedge Widely separated Yerkes Observatory
Pasaje populare
Pagina 49 - EMGs were sampled with surface electrodes for ten revolutions at the beginning, in the middle and at the end of each work...
Pagina 272 - When an appointment or detail is to be made to the office of astronomical director, director of the Nautical Almanac, astronomer, or assistant astronomer, the board of visitors may recommend to the Secretary of the Navy a suitable person to fill such office, but such recommendation shall be determined only by a majority vote of the members present at a regularly called meeting of the board held in the city of Washington.
Pagina 197 - The officers of the Society shall consist of a President, two Vice Presidents, a Secretary...
Pagina 197 - Society to serve for a period of one year, and two members shall be chosen annually to serve for a period of two years or until their successors are duly elected and qualified.
Pagina 272 - The board of visitors shall prepare and submit to the Secretary of the Navy regulations prescribing the scope of the astronomical and other researches of the Observatory and the duties of its staff with reference...
Pagina 357 - PRINTERS AND BINDERS THE PRINTING OF BOOKS DEMANDING TASTE AND CAREFUL EXECUTION, PRIVATE EDITIONS, COLLEGE CATALOGUES AND ANNUALS A SPECIALTY. WE PRINT MORE FINE BOOKS THAN ALL OTHER HOUSES WEST OF NEW YORK. OUR NEW FACTORY, RUN ENTIRELY BY ELECTRICITY, IS THE MOST ADVANCED PRINTING PLANT IN THE COUNTRY. THE LAKESIDE PRESS BLDG., PLYMOUTH PLACE, COR. POLK, CHICAGO.
Pagina 384 - Sold in quart bottles only, by Druggists and high-class Grocers. Prepared only by Henry B. Platt, Platt Street, New York.