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Contains:  Pelican nebula, IC 5070, The star 57Cyg, The star 56Cyg
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Suburban Pelican Nebula, 





    
        

            Kevin Morefield
Suburban Pelican Nebula

Suburban Pelican Nebula

Technical card

Imaging telescope or lens:Televue NP127is

Imaging camera:SBIG STT 8300M

Mount: Paramount MyT

Guiding telescope or lens:Televue NP127is

Guiding camera:SBIG STT 8300M

Software:CCDWare CCDStack 2Adobe Photoship CCCCDWare CCDAutoPilot 5

Filter:Astrodon 36mm 5,3,3 and LRGB

Resolution: 2801x2295

Dates:Oct. 8, 2015

Frames: 31x1800"

Integration: 15.5 hours

Avg. Moon age: 25.51 days

Avg. Moon phase: 17.22%

Astrometry.net job: 2047441

RA center: 312.817 degrees

DEC center: 44.280 degrees

Pixel scale: 1.677 arcsec/pixel

Orientation: 179.055 degrees

Field radius: 0.843 degrees

Locations: Suburban Orange County CA, Las Flores, California, United States

Data source: Backyard

Description

Taken from my suburban Orange County CA backyard. The data was from shortly after I first acquired a narrowband setup. I got my AO-8 and SBIG STT 8300M to track using the AO (hadn't figured out traditional guiding yet) and had very nice subs with <2 pixel FWHM on some subs. Since this was some of the first data I had gathered, I figured that was normal!

This was really fun to revisit as I've learned much more about how to process the data.

30 minutes subs, 7 Ha, 16 OIII, and 8 SII. 15.5 hours total. Ha was blended in to the OIII at 3:1 and into the SII at 3:1. The Green channel is a combination of the blended OIII and SII data. Since the Green was essentially a psuedo-luminance, I blended that with the Straight Ha data for the luminance channel. Masters and RGB created in CCDStack. The rest of the processing was done in Photoshop.

Star reduction with minimum filter, fine sharpening with unsharp mask, large scale sharpening with a high pass filter.

Comments

Author

morefield
Kevin Morefield
License: None (All rights reserved)
2113
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Revisions

  • Suburban Pelican Nebula, 





    
        

            Kevin Morefield
    Original
  • Suburban Pelican Nebula, 





    
        

            Kevin Morefield
    B
  • Final
    Suburban Pelican Nebula, 





    
        

            Kevin Morefield
    C

B

Uploading better jpeg to cure jpeg artifacts

C

more saturation and better JPEG

Sky plot

Sky plot

Histogram

Suburban Pelican Nebula, 





    
        

            Kevin Morefield

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Adaptive Optics