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Contains:  Horsehead nebula, IC 434, NGC 2023
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Horsehead Nebula

Technical card

Dates:Nov. 18, 2018Nov. 20, 2018Jan. 25, 2019Jan. 28, 2019

Astrodon E-Series Tru-Balance [B]: 11x240" bin 2x2
Astrodon E-Series Tru-Balance [G]: 18x240" bin 2x2
Astrodon E-Series Tru-Balance [Lum]: 43x420" bin 1x1
Astrodon E-Series Tru-Balance [R]: 9x240" bin 2x2
Astrodon Ha 5nm: 32x900" bin 1x1

Integration: 15.6 hours

Avg. Moon age: 16.08 days

Avg. Moon phase: 71.65%

Basic astrometry details job: 2510141

RA center: 5h 40' 40"

DEC center: -2° 20' 52"

Pixel scale: 0.744 arcsec/pixel

Orientation: 96.202 degrees

Field radius: 0.450 degrees

Resolution: 2546x3534

Data source: Own remote observatory

Remote source: Non-commercial independent facility


This image was a real struggle, throwing out about 50% of my exposures due high clouds or moisture made worse by the bright stars out of the frame. I used synthetic L and R with contributions to both coming from Ha, and also applied a hue/saturation adjustment to the RGB image using Ha as a mask.



Adam Landefeld

Sky plot

Sky plot


Horsehead Nebula, 


            Adam Landefeld