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Contains:  NGC 6995, Network nebula, NGC 6992, IC 1340, Veil nebula, Lace-work nebula, Filamentary nebula, NGC 6960, The star 52Cyg
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Veil Nebula, 





    
        

            Daniel.P
Veil Nebula

Veil Nebula

Technical card

Resolution: 1855x1491

Dates:Aug. 15, 2015Aug. 20, 2015

Frames:Hutech IDAS LPS-V4 : 96x300" -15C bin 1x1

Integration: 8.0 hours

Flats: ~5

Bias: ~20

Avg. Moon age: 3.04 days

Avg. Moon phase: 14.54%

Mean FWHM: 7.00

Temperature: 18.00

Astrometry.net job: 936216

RA center: 312.850 degrees

DEC center: 30.609 degrees

Pixel scale: 7.578 arcsec/pixel

Orientation: 85.330 degrees

Field radius: 2.504 degrees

Locations: Duc, Prayssas, Lot et Garonne, France

Description

This is a 2 x 1 mosaic acquired over two nights (scale reduced to 50% of original).
This is my first (successful) mosaic.
It was assembled in PI using Gradient Merge process. The overlap region is the vertical strip in the middle of the image. I had to use the geometric correction to build the mosaic, because the image is covering a large field.
The FWHM is 7 arcsec, I found it difficult to go below 6 arcsec with the hyperstar on my C8 ... I dont think this is very good.

Pre-processing done in Pixinsight :
- overscan area offset correction
- bias correction
- flat correction
- hot pixel correction
- debayer
- registration
- stack
Processing done in Pixinsight :
- backgroung color neutralisation
- color calibration using nebula
- gradient merge mosaic
- residual sky background substraction
- color saturation boost
- green neutral
- non linear image creation
- erosion
Final image :
- jpeg calibration done in Mac Photo scaled at 50%

Comments

Author

Daniel.P
Daniel.P
License: None (All rights reserved)
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Veil Nebula, 





    
        

            Daniel.P