Monthly Notices of the Royal Astronomical Society, Band 21

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Priestley and Weale, 1861
Includes lists of additions to the Society's library, usually separately paged.
 

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Seite 57 - Practical and Spherical Astronomy for the use chiefly of Students in the Universities. By the Kev.
Seite 205 - The general aspect of the greater part of the nebula is therefore that of an assemblage of curved wisps of luminous matter, which, branching outward from a common origin in the bright masses in the vicinity of the Trapezium, sweep towards a southerly direction, on either side of an axis passing through the apex, of the Regio Huygeniana, nearly in the angle of position 180°.
Seite 204 - ... again, its darker openings and channels as dark objects on a white ground. The quarter designated in Herschel's chart * as the Regio Godiniana was first explored. The nebulosity was here resolved into an assemblage of three or four long wisps, interlaced with each other, or crossed by offsets ; these were ultimately traced from a point near the northern margin of the Sinus Magnus, over the whole length of the Regio Picardiana and the Regio Godiniana, forming a sweep of 120°. After passing the...
Seite 205 - Others, which are less curved, originate near the Sinus Gentilii ; these are narrow and somewhat tortuous. It is to be noticed that the initial direction of the wreaths (Nebelstreifen) changes continuously from an angle of position of 330' on the northern margin of the Sinus Magnus, to one of 220°, or less, at the S. Gentilii, and the sweep of the curve correspondingly diminishes, so that throughout the whole nebulous region preceding the sharply defined apex of the A'.
Seite 206 - ... to their mutual relation and significance ; and partly also to the faintness of some of the details, which are, nevertheless, very essential features in a correct apprehension of its structure, supplying, as they do, what would otherwise appear as breaks of continuity, and assisting materially in the recognition of a principle of regularity pervading the whole structure. Until the law of relation and continuity in the several parts of such an object is entertained in the mind, it must remain...
Seite 98 - January 28th, 1860, in his eighty-seventh year. It is totally impossible to enter upon his career and services. The following abstract is substantially extracted from a publication made by his family : — • Sir Thomas entered the army in 1790, and fought in the first battle of the war, in May 1793, and in the subsequent actions.
Seite 195 - Geometricae; the first being on the general principles of mathematics, the second containing propositions of Optics proved geometrically, and the third treating of properties of Curve lines. The...
Seite 99 - Colony of Australia, Lord Bathurst informed the Duke of Wellington that he " wanted a man to govern, not the heavens, but the earth." Sir Thomas appealed to the Duke to say whether science had ever stood in the way of his duty as a soldier. "Certainly not...
Seite 304 - Catalogue of 6317 Stars, chiefly Circumpolar, reduced to the Epoch 1845.0 ; formed from the Observations made at the Radcliffe Observatory, under the Superintendence of Manuel John Johnson, MD, late Radcliffe Observer ; — with Introduction by Rev.
Seite 237 - ... notched, thus conveying the idea of mountains upon the plane of the ring, intercepting portions of the thin line of shadow, and almost breaking it up into a thin line of dots. Capt. WS Jacob, of Hartwell, who observed the same phenomena, May 19th, 1861, is, however, inclined to attribute them to the variation in the shade or tone of the shadow, by which the darker portions appeared to project beyond the rest. Movements of Sirius.— It has been for a long time known to astronomers that there...

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