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adopted Alcyone appears approximate argument assumed Astronomical Bessel bisections Cape Catalogue coefficients column comparison stars Cordoba correction deduced Delaunay depend derived determining difference discordance distance double star East Elkin employed epoch equations of condition Eridani expressions give given Gold Medal.—For Greenwich half sets half weight Hansen's Tables Heliometer hour angle Images inequalities investigation Lacaille line joining long period magnitude mean error mean longitude mean value measures Memoir Meridian observations micrometer Monthly Notices Moon Neison Newcomb normals number of observations obtained pair parallactic parallax factor perigee planet Pleiades Pleione position angle probable error Prof proper motion reduced relative residuals Right Ascension roooxE Royal Astron series of values Sidereal Sirius solar parallax solution Steadiness systematic error tabular Tauri terms of long theoretical values tions values found West XLVIII
Page 434 - The Royal Astronomical Society of London voted him, in 1848, a Testimonial " for his Researches in the Problem of Inverse Perturbations, leading to the discovery of the planet Neptune.
Page 433 - Reduction of the Observations of Planets, made at the Royal Observatory, Greenwich, from 1750 to 1830.
Page 437 - NOTES THE Council of the Royal Astronomical Society have awarded their gold medal to Dr. W. Huggins for his researches on the motions of stars in the line of sight and on the photographic spectra of stars and comets. The presentation takes place at the annual meeting next month. This is the second time that Dr. Huggins has received the medal, he having, in 1867, in conjunction with the late Prof. Miller, received it for his researches in astronomical physics. THE will of Mr. George Bentham, who died...
Page 185 - ... determining with more precision the constant of precession and the amount and direction of the solar motion in space. And who can predict what hitherto unknown cosmical laws might reveal themselves in the course of such an investigation? It is important to consider whether such a scheme of research is one that can be realised in the immediate future, or one that can only be carried to completion by the accumulated labours of successive astronomers. I have very carefully considered this question...
Page 411 - Faculte des Sciences de Paris pour obtenir le grade de docteur es sciences physiques.
Page 221 - Catalogue of 1098 Standard Clock and Zodiacal Stars, prepared under the direction of Simon Newcomb.
Page 432 - ... Paramatta, founded by LieutenantGeneral Sir Thomas Makdougall Brisbane. The Computation made and the Catalogue constructed by Mr. W. Richardson. London. 1835Quarto. In February 1828, at the Annual General Meeting of the Royal Astronomical Society of London, Sir Thomas was presented with the Society's Gold Medal, for his establishment. of an Observatory, and for an important series of observations made at Paramatta. Transactions, voL iii. p. 399. The Address delivered on that occasion by the President...