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Part of the nebula around the star Gamma Cygni
QHY8L, FL=660mm (f/5.2), 3x1200s OSC RGB
LBN159 is a dark nebula towards the "Orion Spur" of our galaxy. Dark nebulas are huge amount of dust obstructing the light of stars behind them. The tiny emission nebula is the NGC6857 (up) having a brightness of 11.39mag and an apparent size of 0,6". SH2-99 is apparently located under it.
QHY8L OSC, NP127is, 4x1200s, 660mm, f5.2, IDAS