Publications of the Astronomical Society of the Pacific, Volumes 3-4Astronomical Society of the Pacific, 1891 |
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Page 22
... object - glass by ALVAN CLARK & SONS , and mounting by WARNER & SWASEY ; it is provided with clock - work , and an attachment for the electrical illu- mination of the circles and micrometer . There are five eye - pieces , varying in ...
... object - glass by ALVAN CLARK & SONS , and mounting by WARNER & SWASEY ; it is provided with clock - work , and an attachment for the electrical illu- mination of the circles and micrometer . There are five eye - pieces , varying in ...
Page 28
... object , the difference of a second of time may either under or over - expose a plate . In the hands of a skillful operator this accidental time will be counteracted by proper manipu- lation . Many factors enter into the calculation of ...
... object , the difference of a second of time may either under or over - expose a plate . In the hands of a skillful operator this accidental time will be counteracted by proper manipu- lation . Many factors enter into the calculation of ...
Page 33
... object - glass . It is to have the rather long focus of 18 feet , as this is allowed by the size of the dome . Messrs . WARNER & SWASEY are to supply the dome and mounting . The latter is made extra heavy ; in fact , it is of the size ...
... object - glass . It is to have the rather long focus of 18 feet , as this is allowed by the size of the dome . Messrs . WARNER & SWASEY are to supply the dome and mounting . The latter is made extra heavy ; in fact , it is of the size ...
Page 45
... object that engages the attention of the University " officers and their greedy printer . THOLLON'S MAP OF THE SOLAR SPECTRUM . W. L. " The third volume of the Annals of the Observatory of Nice is accompanied by a magnificent folio ...
... object that engages the attention of the University " officers and their greedy printer . THOLLON'S MAP OF THE SOLAR SPECTRUM . W. L. " The third volume of the Annals of the Observatory of Nice is accompanied by a magnificent folio ...
Page 49
... object , all point to it as most suitable for this purpose . " This work is not so much intended for the specialist in astronomy as for the student of mathematics who desires an insight into the creations of his masters in this field ...
... object , all point to it as most suitable for this purpose . " This work is not so much intended for the specialist in astronomy as for the student of mathematics who desires an insight into the creations of his masters in this field ...
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Common terms and phrases
angle aperture appears Astronomical Astronomical Society atmosphere August axis bright BURCKHALTER California Street Catalogue Chicago Section chronometer Comet Committee copies corona coronal pole crater dark diameter Directors disc distance drawings E. E. BARNARD eclipse elected elongated equator equatorial exposure eye-piece HOLDEN inches instrument J. M. SCHAEBERLE July Jupiter Jupiter's KEELER latitude Library Lick Observatory light limb London longitude lunar magnitude means meeting meridian meridian circle meteors minutes Miss CLERKE MOLERA Moon Mount Hamilton nebula negatives object observations obtained Pacific parallax Paris photographic PIERSON planet plates polar position present Prof Professor WEINEK proper motions Publications radiant rays reference book right ascension ring San Francisco satellite SCHMIDT Secretary seen shadow solar spectra spectrum spot stars stellar sun-spots sun's telescope temperature tion TRANSIT OF MERCURY U. S. Naval Observatory University visible W. H. S. MONCK W. W. CAMPBELL Washington Zodiacal light