The Observatory, Volume 56Editors of the Observatory, 1933 Some vols. for 1886- include a special issue: Annual companion to the Observatory. |
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Page 96
... recent advances . THE PERIOD OF RADIUM . - A paper on " The Period of Radium " by Ellen Gleditsch and Ernst Foyn in the American Journal of Science for November 1932 is of interest inasmuch as the rate of disintegration of radium ...
... recent advances . THE PERIOD OF RADIUM . - A paper on " The Period of Radium " by Ellen Gleditsch and Ernst Foyn in the American Journal of Science for November 1932 is of interest inasmuch as the rate of disintegration of radium ...
Page 135
... recent letter from Dr. C. C. Wylie contains the following interesting paragraph : - 66 I recently received from the Sun Yatsen observatory in China reports on the observations made at Nanking and Paoting . They made no counts , but from ...
... recent letter from Dr. C. C. Wylie contains the following interesting paragraph : - 66 I recently received from the Sun Yatsen observatory in China reports on the observations made at Nanking and Paoting . They made no counts , but from ...
Page 334
... recent report from Dr. W. S. Adams at Mount Wilson , dated October 8 , states that on a spectrogram taken on October 2 , Adams and Joy found that the green coronal line 5303 A was present and strong ; another strong line at 6374 A ...
... recent report from Dr. W. S. Adams at Mount Wilson , dated October 8 , states that on a spectrogram taken on October 2 , Adams and Joy found that the green coronal line 5303 A was present and strong ; another strong line at 6374 A ...
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absorption appears astrographic Astronomer Royal atmosphere atom bands bright BRITISH ASTRONOMICAL ASSOCIATION calcium Cambridge Cape catalogue central intensities centre chromosphere clock colour comet comparison stars computed correction corresponding craters Crommelin curve Decl density determined discussion distance double stars Earth eclipse effect electrons emission ephemeris equation equatorial Eros frequency galaxies George Darwin give given Greaves Greenwich hydrogen instrument interest investigation ionisation Jupiter km./sec latitude layer light lines longitude magnetic magnitude mean measured meridian meteorite meteors method motion nebulæ observations Observatory obtained orbit oscillator paper period photographs planet planetary plates position possible present President probable error Prof Professor Quadrantids radial velocities radiation Right Ascension rotational speed Sir Arthur Eddington Sir Frank Dyson slide Solar Activity spectra spectrograph spectrum spot Steavenson stellar Sun's sunspot surface tables telescope temperature theory University variable variable stars variation wave-length zero