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
... TION , AND ONE OF THE MOTION IN THE LINE OF SIGHT . F. R. Moulton THE INFLUENCE OF THE PURKINJE PHENOMENON on OBSERVATIONS OF FAINT SPECTRA . W. W. Campbell - RESULTS OF THE PHOTOGRAPHIC OBSERVATIONS OF THE LEONIDS , NOVEMBER 14-15 ...
... TION , AND ONE OF THE MOTION IN THE LINE OF SIGHT . F. R. Moulton THE INFLUENCE OF THE PURKINJE PHENOMENON on OBSERVATIONS OF FAINT SPECTRA . W. W. Campbell - RESULTS OF THE PHOTOGRAPHIC OBSERVATIONS OF THE LEONIDS , NOVEMBER 14-15 ...
Pagina 2
... tion of a circular orbit for the Earth . That is , although the Earth's velocity varies in both amount and direction from that of a circular orbit , yet the combined effect is constant for any particular star . The analogue to this ...
... tion of a circular orbit for the Earth . That is , although the Earth's velocity varies in both amount and direction from that of a circular orbit , yet the combined effect is constant for any particular star . The analogue to this ...
Pagina 15
... tion of motion . That is , there would be but four unknowns involved , instead of the five elements , and the problem would be reduced to the solution of four simultaneous equations . As another set of intermediate quantities , the six ...
... tion of motion . That is , there would be but four unknowns involved , instead of the five elements , and the problem would be reduced to the solution of four simultaneous equations . As another set of intermediate quantities , the six ...
Pagina 19
... tion to the factor k2 , the factor dr . dt It is easy to see that in every case this will be an extremely small fraction . In order that it might be equal to unity the radius vector would have to change a whole astronomical unit in a ...
... tion to the factor k2 , the factor dr . dt It is easy to see that in every case this will be an extremely small fraction . In order that it might be equal to unity the radius vector would have to change a whole astronomical unit in a ...
Pagina 20
... a , sin 3 , -v sin 3 , ... Then 13 becomes P 2. λ , — 2 , 3 , — - , - 2 . 2. d . — 3 , 3. —--- བི་ ཀ ༤ ། 3 . Eliminating , and 3 , we have £ , cos 2 , 3 ” ( IG ) Expanding the determinant , and carrying out the computa- tion 20 F. R. MOKI.
... a , sin 3 , -v sin 3 , ... Then 13 becomes P 2. λ , — 2 , 3 , — - , - 2 . 2. d . — 3 , 3. —--- བི་ ཀ ༤ ། 3 . Eliminating , and 3 , we have £ , cos 2 , 3 ” ( IG ) Expanding the determinant , and carrying out the computa- tion 20 F. R. MOKI.
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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 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.
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