Project Gutenberg 2011-06-19 Public domain in the USA. 298 Keeler, James Edward 1857 1900 Keeler, James E. (James Edward) Keeler, J. E. (James Edward) Photographs of Nebulæ and Clusters, Made with the Crossley Reflector Produced by Bryan Ness and the Online Distributed Proofreading Team at http://www.pgdp.net (This file was produced from images generously made available by The Internet Archive/American Libraries.) "Photographs of Nebulæ and Clusters, Made with the Crossley Reflector" by Keeler is a scientific publication written in the late 19th century. The work presents pioneering astronomical photography focused on capturing images of nebulæ and star clusters using the Crossley Reflector at the Lick Observatory. The book discusses the innovations in astrophotography and the significant discoveries made through these photographic endeavors. The opening of the volume begins with a note acknowledging some technical issues with original photographic plates, specifically regarding the visibility of dark rings around certain stars. Following this, the preface outlines Professor James Edward Keeler's ambitious plan to photograph various celestial bodies during his directorship at the Lick Observatory, detailing his success in capturing images of numerous nebulæ. It sets the stage for discussing the revolutionary findings regarding the existence of thousands of unrecorded nebulæ and their spiral structures, highlighting both the challenges and the advancements in observational techniques made during Keeler's time. (This is an automatically generated summary.) Reading ease score: 87.7 (6th grade). Easy to read. en Nebulae Stars -- Clusters Astronomical photography Crossley reflector QB Text Category: Science - Physics Category: Science - Earth/Agricultural/Farming 656884 2025-08-15T03:49:49.054416 text/html 573471 2011-06-19T17:32:40 text/html 2671520 2025-08-15T03:50:04.824339 application/epub+zip 2670799 2025-08-15T03:49:53.970419 application/epub+zip 138738 2025-08-15T03:49:52.036374 application/epub+zip 2926470 2025-08-15T03:50:11.261278 application/x-mobipocket-ebook 2922850 2025-08-15T03:50:03.343344 application/x-mobipocket-ebook 223997 2022-09-16T15:41:36.915054 application/x-mobipocket-ebook 176772 2025-08-15T03:49:45.966401 text/plain; charset=us-ascii 176234 2011-06-19T17:32:38 text/plain; charset=us-ascii 177235 2011-06-19T17:32:38 text/plain; charset=us-ascii 20956 2025-08-15T03:50:11.426265 application/rdf+xml 24327 2025-08-15T03:49:52.648378 image/jpeg 4523 2025-08-15T03:49:52.343372 image/jpeg 54358 2011-06-19T17:32:44 application/octet-stream application/zip 2618387 2011-06-19T17:32:44 application/octet-stream application/zip 54361 2011-06-19T17:32:44 application/octet-stream application/zip 2950670 2025-08-15T03:49:49.250370 application/octet-stream application/zip Archives containing the RDF files for *all* our books can be downloaded at https://book.klll.cc/wiki/Gutenberg:Feeds#The_Complete_Project_Gutenberg_Catalog en.wikipedia