Hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Cocoon nebula  ·  IC 5146
Cocoon Nebula IC5146 HA-LRGB, Summer Solstice 2019, 



    
        

            Vikas Sahota
Cocoon Nebula IC5146 HA-LRGB, Summer Solstice 2019
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Cocoon Nebula IC5146 HA-LRGB, Summer Solstice 2019

Cocoon Nebula IC5146 HA-LRGB, Summer Solstice 2019, 



    
        

            Vikas Sahota
Cocoon Nebula IC5146 HA-LRGB, Summer Solstice 2019
Powered byPixInsight

Cocoon Nebula IC5146 HA-LRGB, Summer Solstice 2019

Technical card

Imaging telescopes or lenses: Altair Astro 72edf deluxe

Imaging cameras: Altair Hypercam 183M PRO TEC

Mounts: DarkFrame Optics StellarDrive 6

Guiding telescopes or lenses: Altair Astro 60 mm guidescope

Guiding cameras: Altair GPCAM3 178M

Focal reducers: Altair Astro 0.80 Focal Reducer-Flattner

Software: PHD Guiding 2  ·  EQMOD EQAscom  ·  SharpCap 3.2  ·  AstroPixel Processor

Filters: Baader B 2"  ·  Baader G 2"  ·  Baader R 2"  ·  Baader L 2''  ·  Baader HA Enforced 3.5nm

Accessory: Pegasus Astro Pocket Powerbox  ·  Pegasus Astro FocusCube  ·  Altair Astro DewZapper 3-4.5" OD HIGH POWER Dew Heater


Dates:June 22, 2019

Frames:
Baader B 2": 25x60" ISO3810 -15C bin 1x1
Baader G 2": 25x60" ISO3810 -15C bin 1x1
Baader HA Enforced 3.5nm: 3x300" ISO3810 -15C bin 1x1
Baader L 2'': 41x30" ISO3810 (gain: 0.00) -15C bin 1x1
Baader R 2": 25x90" ISO3810 -15C bin 1x1

Integration: 2.1 hours

Darks: ~50

Flats: ~50

Bias: ~200

Avg. Moon age: 19.55 days

Avg. Moon phase: 76.23%

Bortle Dark-Sky Scale: 6.00


Basic astrometry details

Astrometry.net job: 2757146

RA center: 21h 53' 30"

DEC center: +47° 10' 44"

Pixel scale: 1.392 arcsec/pixel

Orientation: 224.257 degrees

Field radius: 1.243 degrees


Resolution: 1824x1214

Locations: Backyard, Slough, Berkshire, United Kingdom

Data source: Backyard

Description

Bit of a challenge since it was the shortest night of the year and I wanted to see if I could snap something. I tried for the cocoon using a high gain approach with short exposures. It sacrifices some dynamic range but with only half an hour on each of the LRGB filters, and just 15mins on HA, worked out OK I think.

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Sky plot

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Histogram

Cocoon Nebula IC5146 HA-LRGB, Summer Solstice 2019, 



    
        

            Vikas Sahota