Äîêóìåíò âçÿò èç êýøà ïîèñêîâîé ìàøèíû. Àäðåñ îðèãèíàëüíîãî äîêóìåíòà : http://www.astronomy.com/magazine/stephen-omeara/2011/06/a-stellar-summer-planetary-nebula
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A stellar summer planetary nebula | Astronomy.com
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A stellar summer planetary nebula

August 2011: Bright but tiny NGC 6210 holds colorful intricacies for any observer wily enough to seek them.
stephen_james_o_meara_new

Did you know that magnitude 9.2 NGC 6210, a planetary nebula in nearby Hercules the Strongman, not only rivals M57 in brightness, but also is a cinch to spot from many city locations with large binoculars or a small telescope?

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