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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... TEMPERATURES . F. Paschen MINOR CONTRIBUTIONS AND NOTES : The Third Conference of Astronomers and Astrophysicists . Geo . C. Comstock REVIEWS : Photometrische Durchmusterung des nordlichen Himmels , enthaltend alle Sterne der B. D. bis ...
... TEMPERATURES . F. Paschen MINOR CONTRIBUTIONS AND NOTES : The Third Conference of Astronomers and Astrophysicists . Geo . C. Comstock REVIEWS : Photometrische Durchmusterung des nordlichen Himmels , enthaltend alle Sterne der B. D. bis ...
Pagina 31
... Temperature -11 ° F. Temperature -18 ° F. 13 Hydrogen lines , K 14 Hydrogen lines , K 15 Hydrogen lines , K 18 Hydrogen lines ; many fine lines 252 March 23 e Ursae Majoris 30 .ΟΙ 253 March 28 Procyon 25 .02 254 March 28 Regulus 40 .02 ...
... Temperature -11 ° F. Temperature -18 ° F. 13 Hydrogen lines , K 14 Hydrogen lines , K 15 Hydrogen lines , K 18 Hydrogen lines ; many fine lines 252 March 23 e Ursae Majoris 30 .ΟΙ 253 March 28 Procyon 25 .02 254 March 28 Regulus 40 .02 ...
Pagina 40
... temperature T , and c , and c , are constants , if we substitute for A - 5 , the value of a changing from body to body , my former observations are represented by the formulae . The value of a decreased from 6.4 to 5.2 in passing from ...
... temperature T , and c , and c , are constants , if we substitute for A - 5 , the value of a changing from body to body , my former observations are represented by the formulae . The value of a decreased from 6.4 to 5.2 in passing from ...
Pagina 41
... temperature ; and ( 3 ) the relation that the ratio of the intensity J of wave - length λ to the intensity J of the energy maximum of wave - length A , or J Jm λ , is a function of and for the energy curves at different 1 λπ 1 temperatures ...
... temperature ; and ( 3 ) the relation that the ratio of the intensity J of wave - length λ to the intensity J of the energy maximum of wave - length A , or J Jm λ , is a function of and for the energy curves at different 1 λπ 1 temperatures ...
Pagina 42
... temperature without overstepping the limits of error very considerably . The discrepancy might be due to the imperfect realization of the radia- tion of the black body , as the cavities had openings . When these were very much reduced ...
... temperature without overstepping the limits of error very considerably . The discrepancy might be due to the imperfect realization of the radia- tion of the black body , as the cavities had openings . When these were very much reduced ...
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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
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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.
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