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Airy Alhazen angle appears April Argelander Astronomer Royal atmosphere bright calculated Catalogue clock colour Comet comparison computed corrected crater dark Decl Declination determined diameter distance Earth edge Ephemeris equations Equatoreal error eye-piece Greenwich heliometer inches aperture instrument July June Jupiter latitude light limb longitude Lunar magnitude Mars Mean Solar measures Memoir meridian micrometer Minor Planet Monthly Notices Moon Moon's Nautical Almanac nearly Nebula nucleus object object-glass observations obtained Occultation orbit parallax perihelion Phenomena position present Procyon Prof Proper Motion Radcliffe Radcliffe Observatory refraction refractor remarkable Right Ascension ring ROYAL ASTRONOMICAL SOCIETY Royal Observatory Saturn seen Sept shadow Sirius Small Planets Solar Eclipse Solar Spots Soleil stars Struve Sun's disk surface taches telescope thermometer tion Transit of Mercury variable Variable Star visible W. R. Dawes
Page 212 - For this they willingly are ignorant of, that by the word of God the heavens were of old, and the earth standing out of the water and in the water, whereby the world that then was, being overflowed with water, perished; but the heavens and the earth, which are now, by the same word are kept in store, reserved unto fire against the day of judgment and perdition of ungodly men.
Page 363 - This book is a preservation photocopy. It is made in compliance with copyright law and produced on acid-free archival 60# book weight paper which meets the requirements of ANSI/NISO Z39.48-1992 (permanence of paper) Preservation photocopying and binding by Acme Bookbinding...
Page 139 - The stars shall fade away, the sun himself Grow dim with age, and Nature sink in years, But thou shalt flourish in immortal youth, Unhurt amidst the war of elements, The wreck of matter, and the crush of worlds.
Page 258 - If the whole excess in the motion of the perihelion of Mars is attributed to a ring of asteroids situate at a distance from the Sun equal to that of the Earth, the total mass of these asteroids will be somewhat greater than that of Mars, and will be equal to the fraction 0-138 of the mass of the Earth. 2°. If the whole excess is attributed to a group of asteroids between Mars and Jupiter (distance from the Sun between 2...
Page 26 - Astronomical Observations made at the Observatory of Cambridge by the Rev. JAMES CHALLIS, MA, FRS, FRAS, Plumian Professor of Astronomy and Experimental Philosophy in the University of Cambridge, and Fellow of Trinity College.
Page 40 - ... considerations which, in my own view, serve to invalidate this calorific theory. 1. The specific difference of mean temperature in the intertropical winds as compared with equal zones of extratropical winds, is inadequate and wholly disproportioned to the dynamical effects which are exhibited in these winds. I am not aware that any successful attempt has been made to prove the converse of this objection. 2. The rising of the whole body of the trade wind in the equatorial latitudes, in the manner...
Page 216 - Airy's zenith sector, was the arrangement for making successive observations in two positions of the instrument, face east and face west, at the same transit. The second principle was the substitution of a level or system of levels for the usual plumb-line. The third principle was the casting in one piece, as far as practicable, of each of the different parts of the instrument, in order to avoid the great number of screws and fastenings with which most instruments are hampered, and to secure, if...
Page 133 - Mr. De La Rue's claim to the special notice of astronomers, as a delineator of celestial objects through the medium of photography, does not rest on the absolute priority of his application of a well-known art in a new direction. It is rather based on the fact that by methods and adaptations peculiarly his own, he has been the first to obtain automatic pictures of the sun and moon, sufficiently delicate in their detail to advance our knowledge regarding the physical characters of those bodies, and...
Page 174 - That locality, therefore, is very favourable. ' Selecting, secondly, the parts of the Earth at which the duration of transit would be longest, it will be found that the choice is more limited, and the practical difficulties rather greater. For the acceleration of ingress at...