Monthly Notices of the Royal Astronomical Society, Volume 45; Volumes 1884-1885Priestley and Weale, 1885 Includes lists of additions to the Society's library, usually separately paged. |
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Common terms and phrases
A. M. W. Downing adopted Al-Sufi Almagest aperture appears Aquarii astronomical August Bisection Bradley bright Cape Catalogue Column 12 Comet comparison computed corrections Cygni dark limb determined diameter Diff discordances eclipse Ephemeris Equatorial faint Final Equation Geminorum Gerard of Cremona given Greenwich Greenwich mean Heliometer Huggins instrument July Last contact Leonis longitude lunar magnitude mean measures Meridian Meteorological meteors micrometer micrometer screw microscopes Monthly Notices Moon Nautical Almanac North Polar Distances number of observations Observations of Comet obtained Occultations orbit Orionis parallax Pegasi period Perseids photographs photometer Piscium planet position prism Professor proper motions rcos Reflector remarks Right Ascensions Royal Observatory satellite seen Sept showers Simms solar spectrum Star-line Star's App stellar Stone Table Tauri telescope tion Transit Circle Virginis Δα ΙΟ
Popular passages
Page 197 - A determination of the circumstances under which discontinuity of any kind presents itself in the solution of a problem of Maximum or minimum in the Calculus of Variations, and applications to particular instances. It is expected that the discussion of the instances should be exemplified as far as possible geometrically, and that attention be especially directed to cases of real or supposed failure of the Calculus.
Page 278 - ... something of the motions of the stars relatively to our system. If the stars were moving towards or from the earth, their motion, compounded with the earth's motion, would alter to an observer on the earth the refrangibility of the light emitted by them, and consequently the lines of terrestrial substances would no longer coincide in position in the spectrum with the dark lines produced by the absorption of the vapours of the same substances existing in the stars.
Page 262 - That this universal day is to be a mean solar day ; is to begin for all the world at the moment of mean midnight of the initial meridian, coinciding with the beginning of the civil day and date of that meridian ; and is to be counted from zero up to twenty-four hours.
Page 200 - WACKERBARTH (FD) Music and the Anglo-Saxons, being some Account of the Anglo-Saxon Orchestra, with Remarks on the Church Music of the 19th Century. 8vo, 2 plates, sewed.
Page 125 - Observ. Annals, Vol. XIV. The last columns give the number of stars in each of the charts, and the corresponding number of stars contained in the same portions of the Durchmusterung. Stars suitable for standards must next be selected by the help of the charts. The light of these stars should then be measured in as many different ways as possible. The Committee will be much indebted for aid that may be rendered them in this portion of their work. The early publication of the charts now becomes a matter...
Page 152 - I will say that in my judgm'. they are good, so far as they go; but they do not go far enough if intended as a basis of a political organization separate from existing parties.
Page 194 - The Prize is to be awarded to a Graduate of the University, who is not of more than three years' standing from admission to his first degree when the Essays are sent in, and who shall produce the best English Essay "on some moral or metaphysical subject, on the Existence, Nature, and Attributes of God, or on the Truth and Evidence of the Christian Religion.
Page 263 - That the Conference expresses the hope that the technical studies designed to regulate and extend the application of the decimal system to the division of angular space and of time shall be resumed, so as to permit the extension of this application to all cases in which it presents real advantages.
Page 286 - B and eyepiece 2, the lines appear to be coincident with those of hydrogen. In consequence of the uncertainty of the character of the first line, which is single, while that of nitrogen is double, this determination can now only be made by means of the comparison of the third line with that of hydrogen. This third line becomes very faint from the great loss of light unavoidable in a spectroscope that gives a sufficient dispersive power, and the comparison can only be attempted when the sky is very...
Page 284 - Huggins' researches relates to the determination of the radial component of the velocity of the heavenly bodies relatively to our earth, by means of the alteration of the refrangibility of certain definite kinds of light which they emit, or which are stopped by their atmospheres. The smallness of the alteration corresponding to a relative velocity comparable with the velocity of the earth in its orbit makes the determination a matter of extreme delicacy. But as early as 1868 he had obtained such...