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 114
... possible with a probable error which is smaller than the possible systematic errors arising from atmo- spheric dispersion . At the Cape we were successful in obtaining 1200 plates - 700 with the astrographic telescope and 500 with the ...
... possible with a probable error which is smaller than the possible systematic errors arising from atmo- spheric dispersion . At the Cape we were successful in obtaining 1200 plates - 700 with the astrographic telescope and 500 with the ...
Page 116
... possible effects due to atmospheric dispersion . It is possible to compute for any star in any position on the plate the mean value of the differences between the first diffracted images and to use this quantity as a measure for the ...
... possible effects due to atmospheric dispersion . It is possible to compute for any star in any position on the plate the mean value of the differences between the first diffracted images and to use this quantity as a measure for the ...
Page 187
... possible , from investigations at the Cape and elsewhere , to keep such error satisfactorily small and to form an estimate of its possible magnitude . Dr. Crommelin asked if there had been any explanation yet given of the unexpectedly ...
... possible , from investigations at the Cape and elsewhere , to keep such error satisfactorily small and to form an estimate of its possible magnitude . Dr. Crommelin asked if there had been any explanation yet given of the unexpectedly ...
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Common terms and phrases
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