Publications of the Dominion Observatory, Ottawa, Volume 6Department of Energy, Mines and Resources, Observatories Branch., 1957 - Astronomy |
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12 SPECTRUM LINES-Continued 32 observations adjusted axis blended spectra blended with spectrum centre of solar Chromosphere coelostat house components Computation DELURY diameter difference DOMINION OBSERVATORY ecliptic electric arcs equatorial velocity expressed in km Figure focal plane grating grouped Half-displacements expressed INDIVIDUAL OBSERVATIONS intensity iodine iodine-tube July 14 June June 21 km./sec limb spectra loose nut Lury means taken Measurement:-By O'Connor micrometer screw microscope mounted Observation:-L911 OTTAWA OUTLINE OF OBSERVATIONS penumbral displacements plate left plate right plate-carriage pole prisms RALPH E right and plate rotational velocity settings each line slit solar disc solar image solar limbs solar rotation Spectra of solar spectrograph spectrum lines SPECTRUM LINES-Continued Plate spectrum of centre spider thread strip of spectrum strong lines sunspot systematic errors TABLE VI-RESULTS TABLE XI tube velocity of rotation VI-RESULTS FROM INDIVIDUAL violet left violet right weak lines