Red and black nebulas in Cygnus

May 31, 2014  •  Leave a Comment

LBN159 SH2-99 NGC6857 in CygnusLBN159 SH2-99 NGC6857 in CygnusLBN159 is a dark nebula towards the "Orion Spur" of our galaxy. Dark nebulas are huge amount of dust obstructing the light of the background stars. 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.
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QHY8L OSC, NP127is, 4x1200s, 660mm, f5.2, IDAS

Image 1: LBN159 SH2-99 NGC6857 in Cygnus
 
LBN159 is a dark nebula towards the "Orion Spur" of our galaxy. Dark nebulas are huge amount of dust obstructing the light of the background stars. 

SH2-99 NGC6857 in CygnusSH2-99 NGC6857 in Cygnus

Image 2: Digital zoom on both emission nebulas SH2-99 and NGC6857
 
NGC6857 (up) is a tiny emission nebula having a brightness of  11.4m and an apparent size of 0,6". The second nebula SH2-99 is apparently located under it.

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