Monthly Notices of the Royal Astronomical Society, Volume 17Priestley and Weale, 1857 - Astronomy Includes lists of additions to the Society's library, usually separately paged. |
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Common terms and phrases
Agathocles Alvan Clark angle angular Apparent N.P.D. h m Apparent R.A. Apparent appeared April Astronomer Royal atmosphere axis Berlin bright calculated Capt Catalogue centre Challis comet computed correction dark deduced diameter disk distance Earth eclipse of Agathocles edge elements emersion Ephemeris epoch equatoreal error favourable focal length formula frustrum Greenwich Herschel's immersion inches aperture instrument June Jupiter's Kaliana Larissa latitude light longitude lunar magnitude March Mars maximum Mean Solar measures meridian minor planets Mizar Monthly Notices moon moon's limb motion nearly nebula Norman Pogson object-glass observations obtained Occultation of Jupiter paper parallax Pogson polar position Professor R.A. Apparent N.P.D. reappearance refraction refractor remarks right ascension ring Royal Observatory satellite Saturn seen Simms Society station Sun's telescope temperature Thales tion transit tube variable stars Venus visible W. R. Dawes w₁ zodiacal light ΙΟ
Popular passages
Page 247 - Report of the Astronomer Royal to the Board of Visitors of the Royal Observatory, Greenwich, read at the Annual Visitation of the Royal Observatory, 1860, June 2; and Address of the Astronomer Royal to the Board of Visitors, 1860, May 12.
Page 129 - I have said, he spent to satisfy himself; six more years to satisfy, and still thirteen more to convince, mankind. For thirty years never has the Sun exhibited his disc above the horizon of Dessau without being confronted by Schwabe's imperturbable telescope, and that appears to have happened, on an average, about 300 days a year.
Page 129 - Sun exhibited his disc above the horizon of Dessau without being confronted by Schwabe's imperturbable telescope, and that appears to have happened, on an average, about 300 days a year. So, supposing that he observed but once a day, he has made 9000 observations, in the course of which he discovered 4700 groups.
Page 101 - ... circumstances, the opportunity of acquiring during his lifetime the fame he deserved, but, could he have lived to this period, to have seen his discoveries expunged from the records of geography, and the bay with which his name is so fairly associated treated as a phantom of the imagination.
Page 129 - What the Council wish most emphatically to express is their admiration of the indomitable zeal and untiring energy which Herr Schwabe has displayed in bringing that research to a successful issue. Twelve years he spent to satisfy himself ; six more years to satisfy astronomers ; and still thirteen more to convince mankind.
Page 211 - Earth that she can be seen upon the face of the Sun. An observer at A sees her upon the point S, and an observer at B sees her upon the point S'. Suppose the relation between the points S and S' to be such as to admit of record (the mode of making this record will be considered shortly.) and suppose, by means of that record, the angle SA S
Page 128 - ... Mr. Heinrich Schwabe, of Dessau, Germany, for his researches, continued for a period of thirty years, on the spots which appear on the surface of the sun. From the address of the President, in presenting the medal, we derived the following information on this topic. The plan adopted by Mr. Schwabe is, to note by a number each spot in the order of its appearance, carrying on his notation from the first to the last spot in each year. He reckons an isolated spot, or a cluster of spots where there...
Page 221 - ... (The whole passage should be studied• but space will not permit me to quote any considerable portion of the passages I refer to here.) Again, in the same Report (p. 221): "The Astronomer Royal argues that the future astronomical public will not be satisfied unless all practical use" (probably a misreport for " practicable use") "is made of the transits of Venus in 1874 and 1882, and that for these the determination of some distant longitudes, and a reconnaissance of Wilkes- Land, must be effected...
Page 217 - It is desirable also that the colour left by the shade-glass should be agreeable to the observer's eye. Still there is one caution which must not be put out of sight. The selection of places depends entirely upon the portion of the Earth which is illuminated at the times of ingress and egress ; and if the tables of the movements of Venus are erroneous in 1882 to the amount of an hour's motion, the illuminated face of the Earth will be altered to the amount of two or three hours' rotation of the Earth,...