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Monthly Notices of the Royal Astronomical Society Volume . 40 (Paperback) Loot Price: R624 Discovery Miles 6 240
Monthly Notices of the Royal Astronomical Society Volume . 40 (Paperback): Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society Volume . 40 (Paperback): Royal Astronomical Society

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Monthly Notices of the Royal Astronomical Society Volume . 40 (Paperback)

Royal Astronomical Society

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Loot Price R624 Discovery Miles 6 240

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1880 Excerpt: ...been divided by the sum of the corresponding areas to form Mean Hel. Latitude of Spotted Area North of Equator. Similarly for Spots South of the Equator. In forming the Mean Hel. Lat. of entire Spotted Area the algebraic sum of the products for spots north and south of the equator has been divided by the sum of the areas; and for the Mean Distance from the Equator for all spots, the numerical sum of the products without regard to the sign of the latitude has been similarly divided. The mean areas have been formed by dividing the sum of the daily areas by the number of days of observation. All these means have been formed for each rotation from 1874, April 16, to 1879, Dec. 27, and from these quantities the annual means given in the table have been deduced. The detailed results for each rotation will be printed in the Greenwich Observations for 1879. The table shows that the outburst of spots which commenced in the latter half of 1879 was marked by an increase in the mean latitude N. and S. of the spotted area. This is in accordance with Dr. R. Wolf's observations that the mean distance from the equator is least at the epoch of minimum and greatest at that of maximum of sun-spots. The Mean Areas, &c, for the year 1874 refer to the period of nine months from 1874, April 16, to 1875, Jan. 20. Boyal Observatory, Greenwich, 1880, March II. O11 the Systematic Errors of the Greenwich North Polar Distances. By W. H. M. Christie, Esq. Abstract.)' The long series of observations of N.P.D. made at the Royal Observatory, Greenwich, under the superintendence of Sir G. B. Airy from 1836 to 1878 is discussed in this paper with reference to the systematic errors in the flexure and R--D corrections, in the refractions and in the adopted latitude. It is pointed out that ...


Imprint: Rarebooksclub.com
Country of origin: United States
Release date: May 2012
First published: May 2012
Authors: Royal Astronomical Society
Dimensions: 246 x 189 x 10mm (L x W x T)
Format: Paperback - Trade
Pages: 186
ISBN-13: 978-1-231-16809-7
Barcode: 9781231168097
Categories: Books > Humanities > History
Books > Humanities > History > General
Books > History > General
LSN: 1-231-16809-9

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