Hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  IC 1340  ·  NGC 6960  ·  NGC 6979  ·  NGC 6992  ·  NGC 6995  ·  The star 52Cyg  ·  Veil Nebula
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Cygnus Loop, 



    
        

            DustSpeakers
Cygnus Loop
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Cygnus Loop

Getting plate-solving status, please wait...
Cygnus Loop, 



    
        

            DustSpeakers
Cygnus Loop
Powered byPixInsight

Cygnus Loop

Technical card

Imaging telescopes or lenses: Williams Optics RedCat 51

Mounts: Celestron CGX

Guiding telescopes or lenses: 30mm Guidescope

Guiding cameras: ZWO ASI120MM-S

Software: Startools 1.5  ·  Kstars/EKOS/INDI  ·  Gimp 2.10.8

Filters: ZWO LRGB 31 MM,Halpha,SII,OIII


Dates:Aug. 19, 2019

Frames:ZWO LRGB 31 MM,Halpha,SII,OIII: 50x300" (4h 10') (gain: 200.00) -20C bin 1x1

Integration: 4h 10'

Darks: 30

Flats: 30

Bias: 30

Avg. Moon age: 18.34 days

Avg. Moon phase: 86.25%

Bortle Dark-Sky Scale: 5.00

Temperature: 18.00


Basic astrometry details

Astrometry.net job: 4250445

RA center: 20h 51' 50"

DEC center: +30° 57' 32"

Pixel scale: 6.325 arcsec/pixel

Orientation: 26.997 degrees

Field radius: 2.261 degrees


Resolution: 1975x1651

Locations: Home (Bortle 5), Yateley, United Kingdom

Data source: Backyard

Description

Narrowband first attempt

After 2 years of struggling with the limitations in imaging of my Bortle 6 backyard and DSLR, and with little prospect of moving to a better astroimaging location in the short term, I've shelled out for an ASI1600MM-Pro and an EFW with a set of narrowband filters. \o/

So to test out and get used to the new gear I picked a relatively easy widefield target of the Cygnus Loop, SH 2-103.

Version G - Version E SHO with more denoise/sharpen (StarTools Matrix RGB:ROB)

Version F - Version C HSO with more denoise/sharpen

Version E - SHO in Gimp with denoise and some star removal

Version D - missing!

Version C - Processed in Startools HSO Palette

Version B - Processed in StarTools

Version A - Processed in Gimp

Between 19-25 Aug 2019:

Redcat 51 with EFW and ASI1600MM-Pro controlled by Ekos/Indi. 30mm Guide scope using Ekos internal guiding with dither.

- 75 x 300s Ha

- 50 x 300s OIII

- 35 x 300s SII

- 30 Darks, Flats and Bias. I didn't use the flats in processing as they made the images looks awful. Not sure what went wrong, I just used the same (white T-shirt) method as I did with the DSLR, except doing a set for each of the narrowband filters used.

Comments

Revisions

  • Cygnus Loop, 



    
        

            DustSpeakers
    Original
  • Cygnus Loop, 



    
        

            DustSpeakers
    B
  • Cygnus Loop, 



    
        

            DustSpeakers
    C
  • Cygnus Loop, 



    
        

            DustSpeakers
    E
  • Final
    Cygnus Loop, 



    
        

            DustSpeakers
    F
  • Cygnus Loop, 



    
        

            DustSpeakers
    G

B

Description: Processed in StarTools

Uploaded: ...

C

Description: HSO

Uploaded: ...

E

Description: SHO - Denoised and some star removal

Uploaded: ...

F

Description: Rev C with Denoise/sharpen

Uploaded: ...

G

Description: Rev E with denoise/sharpen

Uploaded: ...

Sky plot

Sky plot

Histogram

Cygnus Loop, 



    
        

            DustSpeakers