The Observatory, Volume 56Editors of the Observatory, 1933 Some vols. for 1886- include a special issue: Annual companion to the Observatory. |
From inside the book
Results 1-3 of 66
Page 106
taken for the determination of stellar parallax are measured with a screw machine , but the measuring is fatiguing . Professor Schlesinger and Mr. Bennett have therefore devised a projection method which considerably eases eye strain ...
taken for the determination of stellar parallax are measured with a screw machine , but the measuring is fatiguing . Professor Schlesinger and Mr. Bennett have therefore devised a projection method which considerably eases eye strain ...
Page 220
... measuring their intensities are considerable , as anyone who has attempted any sort of spectrophoto- metric work will readily understand . In order to mini- mize systematic errors in the measured ratio Ca / Na , the calcium plates were ...
... measuring their intensities are considerable , as anyone who has attempted any sort of spectrophoto- metric work will readily understand . In order to mini- mize systematic errors in the measured ratio Ca / Na , the calcium plates were ...
Page 316
... measured positions of these bright stars prove to be as accurate as those determined from the central image . The whole zone was covered by 48 plates , all except one being obtained within a year . The plates without exception were ...
... measured positions of these bright stars prove to be as accurate as those determined from the central image . The whole zone was covered by 48 plates , all except one being obtained within a year . The plates without exception were ...
Other editions - View all
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