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Contains:  Ring nebula in Lyra, M 57, NGC 6720, IC 1296
Getting plate-solving status, please wait...
Ring Nebula, 





    
        

            Chris Sullivan
Ring Nebula

Ring Nebula

Technical card

Imaging telescope or lens:TPO/GSO RC8

Imaging camera:ZWO ASI 1600MM Cool

Mount:SkyWatcher AZ-EQ5

Guiding telescope or lens:ZWO Off Axis Guider

Guiding camera:Starlight Xpress Lodestar Autoguider X2

Filters:RedOIIIBaader IR-Cut Moon & Skyglow NeodymiumBlueGreenZWO H-alpha 7nm

Resolution: 1825x1250

Dates:May 3, 2018May 25, 2018June 5, 2018June 8, 2018June 12, 2018June 15, 2018June 16, 2018June 18, 2018June 20, 2018June 25, 2018June 30, 2018July 1, 2018July 3, 2018July 10, 2018

Frames:
Blue: 108x120" (gain: 139.00)
Green: 80x120" (gain: 139.00)
ZWO H-alpha 7nm: 168x300" (gain: 139.00)
ZWO H-alpha 7nm: 8x600" (gain: 139.00)
Baader IR-Cut Moon & Skyglow Neodymium: 68x120" (gain: 139.00)
OIII: 54x300" (gain: 139.00)
Red: 95x120" (gain: 139.00)

Integration: 31.5 hours

Avg. Moon age: 15.16 days

Avg. Moon phase: 52.08%

Bortle Dark-Sky Scale: 8.00

Astrometry.net job: 2148843

RA center: 283.394 degrees

DEC center: 33.028 degrees

Pixel scale: 0.488 arcsec/pixel

Orientation: 178.639 degrees

Field radius: 0.150 degrees

Locations: Home Roof (Bortle 7-8 / Est. Sky Quality: 18.53), Springfield, PA, United States

Data source: Backyard

Description

It was such a PIA to get the halo to show! Special thanks to Madratter and Ron Brecher for their tutorials on deconvolution (I used both simultaneously), to J-P Metsavainio for his tone mapping technique and also to Dan Wilson who pointed out an issue I was having with my stars.

Comments

Author

Chris-PA
Chris Sullivan
License: None (All rights reserved)
5484
Like

Revisions

  • Ring Nebula, 





    
        

            Chris Sullivan
    Original
  • Ring Nebula, 





    
        

            Chris Sullivan
    B
  • Ring Nebula, 





    
        

            Chris Sullivan
    C
  • Final
    Ring Nebula, 





    
        

            Chris Sullivan
    D

B

Crop without the halo.

C

Full image with halo.

D

Crop with halo.

Sky plot

Sky plot

Histogram

Ring Nebula, 





    
        

            Chris Sullivan