Narrowband images are always very impressive and this is no exception!
Quote:
Originally Posted by Christopher Ferro
I am curious. Why does the Pelican Nebula have 2 IC numbers (5070 and 5067)?
CJSF
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I'm going to guess that like M42 and M43, it looked like 2 separate nebulae in the telescope when it was observed. Another guess would be that one is a star cluster in the nebula like the Rosette Nebula which has like 4 designations.