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Contains:  NGC 7129, NGC 7142
Getting plate-solving status, please wait...
LRGB NGC 7129 & NGC 7142, 


            Bradley Hargrave

LRGB NGC 7129 & NGC 7142

Technical card

Dates:Aug. 26, 2019Aug. 27, 2019

Baader B 1.25": 48x60" (gain: 139.00) -20C bin 2x2
Baader G 1.25": 45x60" (gain: 139.00) -20C
Baader L 1.25": 105x60" (gain: 139.00) -20C bin 1x1
Baader R 1.25": 42x60" (gain: 139.00) -20C bin 2x2

Integration: 4.0 hours

Darks: ~50

Avg. Moon age: 25.61 days

Avg. Moon phase: 16.63%

Bortle Dark-Sky Scale: 5.00

Basic astrometry details job: 2888059

RA center: 21h 44' 47"

DEC center: +66° 0' 54"

Pixel scale: 1.975 arcsec/pixel

Orientation: 1.841 degrees

Field radius: 1.517 degrees

Resolution: 4384x3372

Data source: Backyard


These objects are rather small at this scale but I went for it any way.
I tried something different and used a binning of 2x2 on my R, G, and B frames. I've been trying to better match my Luminance exposures to my color, but am still having trouble correcting the artifacts created in my integrations. Dark ringing around the star cores, getting worse towards the edges of the frame. I didn't use deconvolution as this usually makes the ringing worse. Thoughts?
All comments welcome.



Bradley Hargrave
License: None (All rights reserved)

Sky plot

Sky plot


LRGB NGC 7129 & NGC 7142, 


            Bradley Hargrave