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Contains:  NGC 3254
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SN2019np in NGC3254, 





    
        

            Daniel.P
SN2019np in NGC3254

SN2019np in NGC3254

Technical card

Resolution: 4656x3520

Dates:May 5, 2019

Frames:
ZWO new G: 3x120" (gain: 139.00) -21C bin 1x1
ZWO new L: 10x120" (gain: 139.00) -21C bin 1x1
ZWO new R: 3x120" (gain: 139.00) -21C bin 1x1

Integration: 0.5 hours

Darks: ~5

Flats: ~8

Flat darks: ~12

Avg. Moon age: 0.54 days

Avg. Moon phase: 0.32%

Mean SQM: 21.20

Mean FWHM: 2.70

Temperature: 5.00

Astrometry.net job: 2701362

RA center: 157.324 degrees

DEC center: 29.488 degrees

Pixel scale: 0.911 arcsec/pixel

Orientation: 349.108 degrees

Field radius: 0.739 degrees

Locations: Duc, Prayssas, Lot et Garonne, France

Data source: Backyard

Description

I decided to allocate one hour to capture my own SN in NGC3254.
For some reason SGP failed to capture the blue channel.
So I made a synthetic color image using : R->R, R+G->G & G->B.

The processing was done in PI as follow (version original):
For each R ,G ,V, Ha, OIII & SII channels :
- Flat Field Dark Substraction
- Flat Field Integration
- Images Calibration (Dark Substraction and FF correction)
- Cosmetic Correction
- Image Registration
- Image Integration
- DBE or ABE
- Noise Reduction (Demure) with recommended variance
- Nonlinear Image Creation

Using each integrated channel :
- Created LRGB color image
- Color balance on stars
- Color saturation mask to protect dark area.

Final image adjustments performed in Iphoto on Imac (levels adjustments, +10% color sat, and deflip)

Comments

Author

Daniel.P
Daniel.P
License: None (All rights reserved)
360
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Revisions

  • SN2019np in NGC3254, 





    
        

            Daniel.P
    Original
  • Final
    SN2019np in NGC3254, 





    
        

            Daniel.P
    B

Sky plot

Sky plot

Histogram

SN2019np in NGC3254, 





    
        

            Daniel.P