IC5146 - Cocoon Nebula in SHO (Jure Menart)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: B168 · Cocoon Nebula · HD208362 · IC 5146 · LBN 424 · LDN 1055 · Sh2-125 · VdB147

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IC5146 - Cocoon Nebula in SHO

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IC5146 - Cocoon Nebula in SHO

Cocoon Nebula is usually not presented in SHO palette because the oxygen iii signal is really weak (see image below).. I wanted SHO target but my initial target was unfortunately hidden behind building so I went to alternative target - IC5146 - Cocoon Nebula. It was interesting (and disappointing) experiment

Second night I gathered LRGB data but I couldn't see a lot of nebulousness (bad seeing and not enough data), so I decided to just put LRGB stars to existing SHO.

It's nice presentation but the white nebulosity around the core is missing. I will come back to this target soon and do it in more traditional LRGB way and with much more data

In the middle of the night I started to gather Oiii data and when I saw it's lacking of any useful data I was a little bit disappointed, but decided to continue with it (Sii, Ha and Oiii from left to right):

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Status	Advanced success
Started	...
Astrometry.net job	8405996
PixInsight job	BD03CPDXJ45TXYBN2YN5QKRYHJBUOTXP
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	21h53m30s.505
RA (top/left)	21h55m47s.508
RA (top/right)	21h53m35s.643
RA (bottom/right)	21h51m12s.705
RA (bottom/left)	21h53m25s.504

Dec (center)	+47°15′57″.37
Dec (top/left)	+47°05′59″.99
Dec (top/right)	+47°41′17″.62
Dec (bottom/right)	+47°25′44″.35
Dec (bottom/left)	+46°50′40″.91

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IC5146 - Cocoon Nebula in SHO

IC5146 - Cocoon Nebula in SHO

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IC5146 - Cocoon Nebula in SHO

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