Äîêóìåíò âçÿò èç êýøà ïîèñêîâîé ìàøèíû. Àäðåñ
îðèãèíàëüíîãî äîêóìåíòà
: http://www.astronomy.com/magazine/sky-this-month/2013/05/a-pair-of-close-encounters
Äàòà èçìåíåíèÿ: Unknown Äàòà èíäåêñèðîâàíèÿ: Sun Apr 10 12:13:14 2016 Êîäèðîâêà: ISO8859-5 Ïîèñêîâûå ñëîâà: cygnus loop |