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Contains:  Cocoon nebula, IC 5146
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IC5146, the Cocoon Nebula, 2013-06-06, 


            Cory Schmitz
IC5146, the Cocoon Nebula, 2013-06-06

IC5146, the Cocoon Nebula, 2013-06-06

Technical card

Imaging telescope or lens:Vixen ED80SF

Imaging camera:Canon 550D


Guiding telescope or lens:Vixen Finderscope 9x50

Guiding camera:Orion StarShoot AutoGuider

Focal reducer:Orion Field Flattener for Short Refractors

Software:O'Telescope BackyardEOSPixInsightPHD Guiding

Resolution: 5202x3465

Dates:June 6, 2013

Integration: 0.0 hours

Avg. Moon age: 27.58 days

Avg. Moon phase: 4.23% job: 83770

RA center: 328.458 degrees

DEC center: 47.320 degrees

Pixel scale: 1.484 arcsec/pixel

Orientation: 173.898 degrees

Field radius: 1.289 degrees


IC5146, the Cocoon Nebula
From data acquired on 2013-06-06

Located in the constellation Cygnus and surrounded by a dense star field, the Cocoon Nebula is a dim (mag +7 - +10) reflection and emission nebula that contains the star cluster Collinder 470. It is located 3,300 light years from earth, is ~15 light years wide, and the central star that illuminates the nebula formed approximately 100,000 years ago. The dark nebula that surrounds it and forms the appearance of a "trail," is Barnard 168.
(source: Wikipedia,

Image information:
Data captured on 2013-06-06
Total integration time 72 minutes, 24 x 3min ISO800
25 dark / 25 flat / 25 flat-dark

Vixen ED80sf 80mm APO refractor
Celestron CG-5 ASGT mount
Orion SSAG autoguider + 50mm guide scope
Canon T2i 550D DSLR (Baader IR modded)
Orion Field Flattener

Image acquisition with BackyardEOS
Guiding with PHD
Stacked in DSS
Post-processed with PixInsight



Cory Schmitz
License: None (All rights reserved)

Sky plot

Sky plot


IC5146, the Cocoon Nebula, 2013-06-06, 


            Cory Schmitz

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O'Telescope BackyardEOS