Sh2-112 Maturing Star Forming, Emission Nebula (Cygnus) in NB (with RGB stars) (David Payne)

Sh2-112 Maturing Star Forming, Emission Nebula (Cygnus) in NB (with RGB stars)

Sh2-112 Emission Nebula Dark - Narrowband with RGB stars (Cygnus), June 2023
Planewave CDK12.5; AP 1100GTO AE
ASI6200MM, - Antlia V Pro 3.5nm NB and RGB filters
Ha,O,S: (25,22,24 x 540s exposures, Bin 2x2, Gain 200)
R,G,B: (15,13,15 x 180s, Bin 2x2, Gain 100)
Total Integration Time = 12.8 hours
Modified Foraxx SHO palette with RGB stars.

Sh2-112 is bright emission nebula within a large Milky Way molecular cloud inside Cynus. I really like this particular image/target, as it juxtaposes the bright emissions lit up on the far side of young stars, with the dark nebula on the near side that casts shadows. Yet is isn't terribly often imaged.
I hazard to guess that it is younger than wither the Fly stellar nursery (NGC1931), or the Cocoon Nebula (IC 5146). However, it does seem to form an archtypical structure with many that I would guess are older (the Tadpoles, 1C410 ; Elephant Trunk, IC1396 ; Little Rosette, SH2-170; Clamshell Sh2-119 and Rosette, NGC2244). All are roughly doughnut shaped with heavy [OIII] and usually visible star cluster in the middle, a doughnut of Ha/[SII] around it, fading to week emissions from the background molecular cloud. In the molecular cloud, fragmentation and collapsing can be seen that will ultimately form additional stars.
SH2-122 is 5600 ly away, a little over twice as distant as the Elephant Trunk.

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