Merope Veiled in Dust
Merope is one of the Pleiades (the Seven Sisters)
The Pleiades are surrounded by dust and gas, forming a bright reflection nebula.
This cluster is about 440 Ly from earth (i.e. relatively close)

CDK 12.5";  STL11K
About 200 min each L,R,G,B nights of Nov 19 and Nov 20, 2015

The entire cluster is shown here: