Slobodno otvoriti link i pronjuškati-interesantno;)...ima dobrih stvari za isprintati !
http://www.deepskywatch.com/deepsky-guide.html
Jedan primjer; https://www.dropbox.com/s/xhpixieb3rctdw8/...las-object-.pdf
Sa iste stranice: http://www.deepskywatch.com/deep-sky-hunter-atlas.html