ISBN: 1130919889

[EAN: 9781130919882], Neubuch, [PU: RareBooksClub], ROYAL ASTRONOMICAL SOCIETY,WORLD, This item is printed on demand. Paperback. 210 pages. Dimensions: 9.7in. x 7.4in. x 0.4in.This histor… More...

[EAN: 9781130919882], Neubuch, [PU: RareBooksClub], ROYAL ASTRONOMICAL SOCIETY,WORLD, This item is printed on demand. Paperback. 210 pages. Dimensions: 9.7in. x 7.4in. x 0.4in.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. 1873 Excerpt: . . . being 500 to 250, and 50 to 650, with a special centre at 440 560. Professor Serpieri gives 500 to 300, J 490 to 64, and all observers agree in a well-defined centre identical with Mr. Gregs. The branch, or secondary streams do not appear to separate from the principal according to any law. I cannot close these remarks without expressing my great obligations to Mr. Greg for carefully condensing my original catalogue into nearly its present form, and for having pointed out most of the agreements with his own and Dr. Schmidts. The columns of the catalogue require no other explanation than that the Zenith Horary Number, where given, has been obtained by multiplying the number of meteors counted per hour by the secant of the zenith distance of the radiant. It represents the number that would probably have been counted by a single observer with the radiant in his zenith. The numbers in the general table which follows are, of course, not similarly affected. Jt may be mentioned that the sphere of vision for small meteors is about 450, and for large about 900 in diameter. As abridged by Mr. Greg in an MS. copy kindly lent to me. No. Catalogue of Observed Radiant-Points and Comparison of the Positions with those of other Observers. Date of Observation. 1869, Dec. 23-31 1870, Jan. 8-10 Jan. 11 Feb. 3-10 1870, Jan. 4 Jan. 11 1870, Jan. 4-31 Feb. 3-10 1870, Jan. 5 Jan. 11 Feb. 3-10 1870, Jan. 5, 11 1869, Feb. 13 1870, March 2-3 1870, Jan. 5 1870, Jan. 8-11 1869, Feb. 13 1870, Feb. 3-10 1870, Feb. 3-10 1869, Feb. 13 1870, Feb. 3-10 1869, March 19 187c, Feb. 3-10 1869, Feb. 17 1870, Feb. 8-10 1870, Feb. 10 1869, Feb. 13 169, Feb. 13 1869, Feb. 22 Mar. 11 Mar. 19 9 20 21 R. A. and Declina-tion for 1830. 1870, Mar. 1 1870, Mar. 2-3 1869, Mar. 7 1870. . . This item ships from La Vergne,TN.<

ISBN: 9781130919882

Royal Astronomical Society, Paperback, English-language edition, Pub by General Books LLC Books History~~General Monthly-Notices-Volume-33-Containing-Papers-Abstracts-of-Papers-and-Report… More...

Royal Astronomical Society, Paperback, English-language edition, Pub by General Books LLC Books History~~General Monthly-Notices-Volume-33-Containing-Papers-Abstracts-of-Papers-and-Reports-of-the-Proceedings-of-the-Society~~Royal-Astronomical-Society General Books LLC<