Cocoon Nebula & Bernard 168
IC 5146 (also Caldwell 19, Sh 2-125, and the Cocoon Nebula) 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. 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 light years 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.
When viewing IC 5146, dark nebula Barnard 168 (B168) is an inseparable part of the experience, forming a dark lane that surrounds the cluster and projects westward forming the appearance of a trail behind the Cocoon.
Imaging telescopes or lenses: Takahashi FSQ130ED
Imaging cameras: QSI 6120i
Mounts: Takahashi EM 400 Temma 2M
Guiding telescopes or lenses: Takahashi FS60CB
Guiding cameras: QHY CCD QHY 5 II
Focal Extender / Reducer: Tak QE 0.73x
Software: PHD 2, Pleiades Astrophoto PixInsight , Astro Pixel Processor (for stacking), Sequence Generator Pro SGP (for capture)
Filters: Astrodon Ha, Lum, Red, Green & Blue
Accessories: Robofocus Focuser, ATIK EFW3
Original Resolution: 4200 x 2800
Dates: 3rd Nov - 10th Nov '21
Frames:
Astrodon Ha 26 x 20'
Astrodon Lum 80 x 3'
Astrodon R, G & B 3 x 60 x 3'
Total Time: 23 Hours 40 Mins.
Center (RA, Dec): (327.815, 47.398)
Center (RA, hms): 21h 51m 15.683s
Center (Dec, dms): +47° 23' 53.024"
Size: 1.57 x 1.05 deg
Radius: 0.943 deg
Pixel scale: 1.34 arcsec/pixel
Orientation: Up is 359 degrees E of N
When viewing IC 5146, dark nebula Barnard 168 (B168) is an inseparable part of the experience, forming a dark lane that surrounds the cluster and projects westward forming the appearance of a trail behind the Cocoon.
Imaging telescopes or lenses: Takahashi FSQ130ED
Imaging cameras: QSI 6120i
Mounts: Takahashi EM 400 Temma 2M
Guiding telescopes or lenses: Takahashi FS60CB
Guiding cameras: QHY CCD QHY 5 II
Focal Extender / Reducer: Tak QE 0.73x
Software: PHD 2, Pleiades Astrophoto PixInsight , Astro Pixel Processor (for stacking), Sequence Generator Pro SGP (for capture)
Filters: Astrodon Ha, Lum, Red, Green & Blue
Accessories: Robofocus Focuser, ATIK EFW3
Original Resolution: 4200 x 2800
Dates: 3rd Nov - 10th Nov '21
Frames:
Astrodon Ha 26 x 20'
Astrodon Lum 80 x 3'
Astrodon R, G & B 3 x 60 x 3'
Total Time: 23 Hours 40 Mins.
Center (RA, Dec): (327.815, 47.398)
Center (RA, hms): 21h 51m 15.683s
Center (Dec, dms): +47° 23' 53.024"
Size: 1.57 x 1.05 deg
Radius: 0.943 deg
Pixel scale: 1.34 arcsec/pixel
Orientation: Up is 359 degrees E of N
Sky Map
Annotated Image
