keyword "Aligning the Secondary Mirror" - FAQ about Collimating a Newtonian telescope http://web.telia.com/~u41105032/kolli/kolli.html http://blog.naver.com/PostView.nhn?blogId=spica1015&logNo=6000681051 0 // 번역판 - 사경크기 계산 http://www.catseyecollimation.com/mccluneytext.html - Secondary Mirror Offset http://blog.scopecity.net/2011/06/03/collimation-and-the-newtonian-t elescope-v-4/ 1. 일반적인 광축 조절 방법 http://www.astroforum.nl/astrowiki/index.php/Collimeren_van_een_Newt ontelescoop,_d.w.z._uitlijnen_van_de_spiegels 1) 광축 조절 간단한 가이드: A Simple Guide to Collimating a Netwonian Reflector http://www.astro-baby.com/collimation/astro%20babys%20collimation%20 guide.htm 2) 체사이와 레이저콜리메이터를 이용한 정렬 방법: Collimating a Telescope http://starizona.com/acb/basics/using_collimating_newt.aspx 3) How To Collimate a Newtonian Telescope http://galacticfool.com/collimate-newtonian-telescope/ 2. 사경 정렬 방식 1) Don Pensack 문서: Passive Tool Collimation and the Newtonian http://www.iceinspace.com.au/63-390-0-0-1-0.html http://www.astronomyforum.net/reflector-telescope-forum/89718-don-pe nsacks-article-collimation.html 2) 포럼: 사경 정렬 방식, Useful info about secondary mirror alignment http://www.cloudynights.com/ubbthreads/showflat.php/Cat/0/Number/303 3065/page/0/view/collapsed/sb/5/o/all/fpart/1 3) 포럼: 다양한 방법의 사경 정렬 방식, Addendum to the Fifth Edition of New Perspectives on Newtonian Collimation. http://homepage.mac.com/vicmenard/telescopes/NPaddend.html