NGC 6188 - The Great Wall of Ara (Narrowband using Hubble Palette)

Bernard Miller



This is NGC 6188, also known as the Great Wall of Ara. It is an emission nebula and star forming region about 4,000 light years away in the constellation Ara. Just above the wall in the picture is the open cluster NGC 6193. This cluster is an infant in Astronomical terms being a mere 1 -3 million years old. The stars in this cluster are largely responsible for the emission nebula. The nebula spans about 600 light years.


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