C19 The Cocoon Nebula 127mm Ha/OIII (Steve Argereow)

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

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C19 The Cocoon Nebula 127mm Ha/OIII

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C19 The Cocoon Nebula 127mm Ha/OIII

The Cocoon Nebula C19 - IC5146
IC 5146 is a reflection/emission nebula and Caldwell object in the constellation Cygnus. The NGC description refers to IC 5146 as a cluster of 9.5 mag stars involved in a bright and dark nebula. The cluster is also known as Collinder 470. It shines at magnitude +10.0/+9.3/+7.2. Its celestial coordinates are RA 21ʰ 53.5ᵐ, dec +47° 16′. It is located near the naked-eye star Pi Cygni, the open cluster NGC 7209 in Lacerta, and the bright open cluster M39. The cluster is about 4,000 ly away, and the central star that lights it formed about 100,000 years ago; the nebula is about 12 arcmins across, which is equivalent to a span of 15 light years.

Information Credits: Wikipedia

Telescope: Explorer Scientific 127mm CF APO Refractor f/7.5 (952mm)
Mount IOptron CEM40
Camera ZWOASI1600MM-Pro Temp -15C, Binning 1 x 1, Gain 139 Offset 21
ZWO EFW

38 X 180 Second Exposures W/ZWO Ha Filter (7nm)
37 X 180 Second Exposures W/Celestron OIII Filter (8.5nm)
50 Dark Frames
Total Integration Time: 3Hours 45 Minutes
Acquisition with SharpCap
Stacked with Astro Pixel Processor (HOOI)
Guiding PHD2
Processed with Astra Image

Photo taken from Seven Lakes, NC Bortle 4.5

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Status	Advanced success
Started	...
Astrometry.net job	5402512
PixInsight job	PCPGI06E8OQPK6SLHUK090VHA6IQZFVC
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	21h53m34s.269
RA (top/left)	21h54m59s.371
RA (top/right)	21h55m21s.442
RA (bottom/right)	21h52m07s.952
RA (bottom/left)	21h51m48s.552

Dec (center)	+47°15′35″.67
Dec (top/left)	+46°51′47″.71
Dec (top/right)	+47°36′41″.29
Dec (bottom/right)	+47°39′16″.52
Dec (bottom/left)	+46°54′20″.48

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C19 The Cocoon Nebula 127mm Ha/OIII

C19 The Cocoon Nebula 127mm Ha/OIII

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C19 The Cocoon Nebula 127mm Ha/OIII

C19 The Cocoon Nebula 127mm Ha/OIII

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