Publications of the Astronomical Society of the Pacific, Volumes 3-4Astronomical Society of the Pacific, 1891 |
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Results 1-5 of 79
Page 16
... give to the limb of the ball the straight - line appearance shown in the figure . This phenomenon , which was carefully studied at the telescope , appears to be related to the " square - shouldered " figure of Saturn remarked by W. HER ...
... give to the limb of the ball the straight - line appearance shown in the figure . This phenomenon , which was carefully studied at the telescope , appears to be related to the " square - shouldered " figure of Saturn remarked by W. HER ...
Page 27
... give better results than the refractor - whether large objec- tives are preferable to smaller ones , etc. Again , the question of diaphragms has been much discussed ; and , as to the limit of proper exposures , the conflicting opinions ...
... give better results than the refractor - whether large objec- tives are preferable to smaller ones , etc. Again , the question of diaphragms has been much discussed ; and , as to the limit of proper exposures , the conflicting opinions ...
Page 29
... give a slight fog to his negatives , and thus marred the beauty of his best eclipse pictures . Another consideration which may have escaped the notice of ex- perimenters , is that the exposure is greatly modified by the developer . The ...
... give a slight fog to his negatives , and thus marred the beauty of his best eclipse pictures . Another consideration which may have escaped the notice of ex- perimenters , is that the exposure is greatly modified by the developer . The ...
Page 30
... give beautiful results , with this warm treatment , especially for instantaneous work . The gelatine film becomes very soft , hence great care is required in all subsequent washings . By way of recapitulation , I may recommend the ...
... give beautiful results , with this warm treatment , especially for instantaneous work . The gelatine film becomes very soft , hence great care is required in all subsequent washings . By way of recapitulation , I may recommend the ...
Page 33
... give great rigidity , and render necessary very little weighting at the object- glass . The tower for the dome is two stories high , and has stairs leading directly to the dark - room for convenience in photographic work . The lower ...
... give great rigidity , and render necessary very little weighting at the object- glass . The tower for the dome is two stories high , and has stairs leading directly to the dark - room for convenience in photographic work . The lower ...
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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