Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  B168  ·  Cocoon Nebula  ·  IC 5146  ·  PGC 167524  ·  PGC 167526  ·  PGC 167556  ·  PGC 167561  ·  PGC 167564  ·  PGC 167581  ·  PGC 167582  ·  PGC 167590  ·  PGC 167593  ·  PGC 167597  ·  PGC 167611  ·  PGC 167613  ·  PGC 167614  ·  PGC 167615  ·  PGC 167638  ·  PGC 67511  ·  PGC 97241  ·  Sh2-125  ·  VdB147
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The Cocoon Nebula, 



    
        

            Jeffrey K Lovelace
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Getting plate-solving status, please wait...
The Cocoon Nebula, 



    
        

            Jeffrey K Lovelace
Powered byPixInsight

Acquisition details

Dates:
Aug. 26, 2019 ·  Sept. 6, 2019
Frames:
Astrodon B 50mm square E Series: 12×300(1h) -25°C bin 1×1
Astrodon G 50mm square E Series: 15×300(1h 15′) -25°C bin 1×1
Astrodon Hα 50mm round 5nm: 24×900(6h) -25°C bin 1×1
Astrodon L 50mm square E Series: 15×120(30′) -25°C bin 1×1
Astrodon R 50mm square E Series: 12×300(1h) -25°C bin 1×1
Integration:
9h 45′
Darks:
20
Flats:
25
Bias:
50
Avg. Moon age:
16.40 days
Avg. Moon phase:
37.33%

RA center: 21h50m33s.41

DEC center: +47°2253.4

Pixel scale: 5.308 arcsec/pixel

Orientation: 87.593 degrees

Field radius: 1.564 degrees

More info:Open 

Resolution: 1500x1500

File size: 2.3 MB

Locations: Sierra Remote Observatories, Auberry, CA, United States

Data source: Own remote observatory

Remote source: Sierra Remote Observatories

Description

Data Acquisition from 2019-08-23 until 2019-09-02

Original Image Scale: 2.06

DSO Color Mapping: LRGB-Hα

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The Cocoon Nebula (Sh2-125), an active star forming region, is associated with star cluster IC 5146 (a.k.a. Collinder 470). The dark nebula Barnard 168 surrounds the Cocoon, and extends to the bottom of the frame. B168 is also called "The Dark Cigar" with the Cocoon as its lit tip. The Lynds Catalog of Dark Nebulae (LDN) breaks down B168 into several component LDNs: 1030, 1031, 1031B, 1031C, 1035, 1040, 1042, 1045, 1047, 1052. The Hα background appears to be just an unnamed ionized area of the interstellar medium.

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The Cocoon Nebula, 



    
        

            Jeffrey K Lovelace