description RCW 108 Overview
RCW 108 is a star-forming H II region in the constellation Ara, about 4,000 light-years from Earth. An H II region is a cloud of ionized hydrogen associated with the formation of young stars. RCW 108 includes the Rim Nebula, NGC 6188, and the open cluster NGC 6193, linking diffuse nebular gas with a nearby stellar population.
help RCW 108 FAQ
What is RCW 108?
RCW 108 is a star-forming H II region in the constellation Ara, about 4,000 light-years from Earth. It includes ionized hydrogen gas associated with young stars.
Which nebulae and star cluster are part of RCW 108?
RCW 108 includes the Rim Nebula and NGC 6188, along with the open cluster NGC 6193. These objects are linked within the same star-forming region.
What does H II region mean in RCW 108?
An H II region is a cloud of hydrogen whose atoms have been ionized by energetic radiation from nearby young stars. RCW 108 is therefore both a nebular cloud and an active site of stellar birth.
Where should I look for RCW 108 in the sky?
RCW 108 lies in the southern constellation Ara. Its position near NGC 6188 and NGC 6193 helps observers identify the wider complex in astronomical images.
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