This is the ultimate, easy-to-read guide for “eclipse-chasers” which includes everything an eclipse chaser needs. There are some important eclipses coming up in the years ahead and the technology available to amateur astronomers is improving fast.
Total Solar Eclipses and How to Observe Them-P2P
English | 19 Sept. 2007 | ISBN: 0387698272 | 216 Pages | PDF | 56,48 MB
发布日期: 2016-07-02