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Contains:  IC 5070, Pelican nebula
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IC 5070 inside the Pelican. Cygnus SHO, 



    
        

            Pat Rodgers
IC 5070 inside the Pelican. Cygnus SHO
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IC 5070 inside the Pelican. Cygnus SHO

Technical card


Dates:June 27, 2018June 29, 2018

Frames:
Baader Ha 1.25" 7nm: 17x600" -12C bin 1x1
Baader OIII 1.25" 8.5nm: 9x600" -12C bin 1x1
Baader S2 1.25" 8nm: 15x600" -12C bin 1x1

Integration: 6.8 hours

Darks: ~39

Flats: ~31

Bias: ~149

Avg. Moon age: 15.02 days

Avg. Moon phase: 99.01%

Bortle Dark-Sky Scale: 6.00

Temperature: 16.00


Basic astrometry details

Astrometry.net job: 2163128

RA center: 20h 50' 28"

DEC center: +44° 24' 25"

Pixel scale: 1.327 arcsec/pixel

Orientation: 285.392 degrees

Field radius: 0.311 degrees


Resolution: 1357x1003

Locations: Un-stable Observatory, back garden., Huddersfield, West Yorkshire, United Kingdom

Data source: Backyard

Description

A close up of the star forming region in the Pelican Nebula lots of Herbig-Haro objects are present in the image, notably HH-555 at the tip of the dark dust column, seen near the upper centre. The SII and OIII were shot in Nautical darkness over several nights, with a near or full moon present. The Ha is mostly taken in just the civil darkness around the nautical periods. Luckily this full moon cycle isn't high in the night sky as it nears an eclipse next time around.
My usual star problem is present as I'm still struggling to square the cameras chip to the drawtube. I now think the issue is the drawtube struggling with the weight of camera and filter wheel.
Shot over 3 nights 27th-29th June, hoping the clear spell will last as I'll add to this.

Comments

Author

Pat_Rodgers
Pat Rodgers
License: None (All rights reserved)
2451
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Revisions

  • IC 5070 inside the Pelican. Cygnus SHO, 



    
        

            Pat Rodgers
    Original
  • IC 5070 inside the Pelican. Cygnus SHO, 



    
        

            Pat Rodgers
    B
  • IC 5070 inside the Pelican. Cygnus SHO, 



    
        

            Pat Rodgers
    C
  • IC 5070 inside the Pelican. Cygnus SHO, 



    
        

            Pat Rodgers
    D
  • IC 5070 inside the Pelican. Cygnus SHO, 



    
        

            Pat Rodgers
    E
  • IC 5070 inside the Pelican. Cygnus SHO, 



    
        

            Pat Rodgers
    F
  • Final
    IC 5070 inside the Pelican. Cygnus SHO, 



    
        

            Pat Rodgers
    G

B

Description: Made a new blend of 60/40 Ha/SII in the red channel. Then made a starless image and sharpened, stretched this be fore adding the stars back. Still need more subs to decrease the noise but a nice moody image.

C

Description: A 50/50 blend of A and B

D

Description: Spurred on by the Propeller tone mapped image I thought I'd have a go at this. SHO_Tone_mapped.

E

Description: Extracted a luminance from D and gave it a 64 kernel dose of LHE at 0.2 strength. Fell of me chair.

F

Description: Added E: The ex Lum back into D: Gave the blue channel a lift in cures and......Fell off me chair again!

G

Description: This is D: with the ex Lum. No colour boost in blue though, did invert D and SCNR the inverted image,which removed the Green which is the inverted purple cast on the left and ....... fell off me chair when I re-inverted it. I can't decide which I like better. Ouch.

Sky plot

Sky plot

Histogram

IC 5070 inside the Pelican. Cygnus SHO, 



    
        

            Pat Rodgers

In these public groups

UK Astro-Imaging