Astronomical Register: A Medium of Communication for Amateur Observers and All Others Interested in the Science of Astronomy, Volume 22

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J. D. Potter., 1884

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Page 163 - TRUTHS which shall ennoble the age and the country in which they are divulged, and by dilating the intellect, react on the moral character of mankind. Such truths are things quite as worthy of struggles and sacrifices as many of the objects for which nations contend, and exhaust their physical and moral energies and resources. They are gems of real and durable glory in the diadems of princes, and conquests which, while they leave no tears behind them, continue for ever unalienable.
Page 219 - Imaginary meteoric bodies, or rings, with which it bos usually bi-en connected, and retain merely the conception of meteoric dust diffused throughout the solar system. It may be shown mathematically, If we regard the meteoric particles as solids reflecting light Irregularly, that an appearance like the zodiacal cone, with an Indefinite vertex, would...
Page 171 - ... that the mean longitude of the first satellite, minus three times that of the second, plus twice that of the third, is always equal to two right angles.
Page 218 - Recent Mathematical Papers concerning the Motions of the Atmosphere. Part I. The Motions of Fluids and Solids on the Earth's Surface.
Page 219 - It is not my intention, on this occasion, to discuss the probability of any explanation of the zodiacal light. I have merely to remark, with regard to the ordinary meteoric theory, that it gains greatly in simplicity if we dispense with all the imaginary meteoric bodies or rings with which it has usually been connected, and retain merely the conception of meteoric dust diffused throughout the Solar System.
Page 201 - ... worlde, as they doe of the latitude: for that there is no starre fixed from East to West, as are the starres of the Poles from North to South, but all mooveth with the mooving divine: no maner can bee founde howe certainely it may bee measured, but by conjectures, as the Navigants have esteemed the way they have gone. But it is manifest that Spaine had the situation of al the lands from Cape Verde, toward the Orient of ye Portingals to their 180 degrees. And...
Page 215 - ... of Jupiter, the original planetary matter was liable to great perturbation. The result of such disturbance by the powerful mass of Jupiter •was the necessary formation of gaps in the asteroid zone. II. The great division in the ring of Saturn may be explained by the disturbing influence of the satellites, and the more narrow division discovered by Encke may be regarded with much probability as the effect of a similar cause.* The recent able and noteworthy papers of General Pannentier.t of Paris,...
Page 213 - ... average glass by Cooke or Grubb, and to a less extent by Clark, appears over-corrected, while one of Schroder's and some of the Munich glasses are under-corrected. But here an important practical difference enters into consideration that has been particularly experimented on by Mr. Russell, of Sydney, viz., that the correction of an object-glass may be lessened by separating the lenses, hence an over-corrected object-glass may be adjusted to any desired extent while one that is under-corrected...
Page 4 - I am satisfied that the results which I have brought forward are correct. Professor Adams. I am sorry to differ so completely from Mr. Stone. I think a great deal of the matter he has introduced is irrelevant. The subject of the determination of the mean solar time appears to me to be a very simple matter. The President has said that the mean Sun is an arbitrary body. The mean Sun is simply the place of the Sun cleared of the ecliptic and other periodical inequalities to which the Sun's motion is...
Page 182 - NOTES ON A RECENT VISIT TO SOME NORTH AMERICAN OBSERVATORIES* By RALPH COPELAND. ALBANY. — The Dudley Observatory at Albany is named in honour of the late Charles E. Dudley by his widow, Mrs. Blandina Dudley, one of its most generous supporters. Professor Lewis Boss has been the Director since 1875, and is at present assisted by Mr.

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