A stellar summer planetary nebula
Bright but tiny NGC 6210 holds colorful intricacies for any observer wily enough to seek them.
June 27, 2011
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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