alxp2000 2011-6-17 13:18
[天空和望遠鏡] Sky & Telescope - August 2011
[img]http://www.postimg.com/39000/photo-38963.jpg[/img]
Sky & Telescope (S&T) is a monthly American magazine covering all aspects of amateur astronomy. The articles are intended for the informed lay reader and include detailed discussions of current discoveries, frequently by participating scientists. The magazine is illustrated in full color, with both amateur and professional photography of celestial sights, as well as tables and charts of upcoming celestial events.
[url=http://bitshare.com/files/dl5bfaw1/Sky-Telescope-2011-08.pdf.html]http://bitshare.com/files/dl5bfaw1/Sky-Telescope-2011-08.pdf.html[/url]
[url=http://www.filesonic.com/file/1228745284/Sky_&_Telescope_2011-08.pdf]http://www.filesonic.com/file/1228745284/Sky_&_Telescope_2011-08.pdf[/url]