Total de visitas: 14849

Proceedings of the Royal Society Volume . 18 downloadPDF, EPUB, MOBI

Proceedings of the Royal Society Volume . 18 downloadPDF, EPUB, MOBI

Proceedings of the Royal Society Volume . 18. Royal Society

Proceedings of the Royal Society Volume . 18
---------------------------------------------------------------
Author: Royal Society
Number of Pages: 244 pages
Published Date: 01 May 2012
Publisher: Rarebooksclub.com
Publication Country: Miami Fl, United States
Language: English
ISBN: 9781231209011
Download Link: Proceedings of the Royal Society Volume . 18
---------------------------------------------------------------


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. 1870 Excerpt: ...presence of the star -j might have a large disturbing effect, increased by aperture, and that therefore an erroneous impression might be formed of the confi VOL. XVIII. T guration and character of the nebula in its proximate neighbourhood. (The trapezium of Orion, as will be seen from observations to be presently recorded, is a case in point.) The spectroscope has, however, decided that Jj in no way influences the configuration as now seen; the star is not only apparently but really on a background, if not completely dark, at least free from nebulosity at all comparable to the brighter parts; moreover the nebulosity at s. end of lemniscatc (the shape there is occasionally made out, showing that nebula does exist) is of a similar faint character. With this evidence that the eye-view with the 4-feet approaches the actual facts, and a due consideration of those facts, it seems difficult to imagine any conditions of aperture, definition, or other disturbing causes which could produce a view at all approaching to that seen by Sir John Herschel. We have therefore evidence of much weight that enormous changes have taken place in this wonderful region. Is not the presence of nitrogen and hydrogen in the star r1 a significant fact in connexion with these changes, which appear to be nothing less than a destruction of nebula specially in its neighbourhood? Orion has been examined with a new and interesting result; the spectroscope proves that in and about the trapezium nebula exists comparable with the bright surrounding nebula. This observation is rendered easy by the large separation of the stars consequent on great focal length of telescope; indeed the whole separation of the original image is not required, the observation being made more crucial by a condensi...

Read online Proceedings of the Royal Society Volume . 18 Buy Proceedings of the Royal Society Volume . 18 Download and read Proceedings of the Royal Society Volume . 18 for pc, mac, kindle, readers Download to iPad/iPhone/iOS, B&N nook Proceedings of the Royal Society Volume . 18 ebook, pdf, djvu, epub, mobi, fb2, zip, rar, torrent