Hemisphere:  Northern
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LDN 1622, 


            Alex Woronow
LDN 1622
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LDN 1622

Technical card

Imaging telescopes or lenses: AP 175

Software: Aurora HDR  ·  StarNet++  ·  MatLab R2019a  ·  PixInsight

B: 21x600"
G: 20x600"
H: 12x1800"
L: 39x600"
R: 15x600"

Integration: 21.8 hours

Astrometry.net job: 2717739

RA center: 5h 54' 50"

DEC center: +1° 59' 13"

Pixel scale: 2.114 arcsec/pixel

Orientation: 271.451 degrees

Field radius: 0.857 degrees

Resolution: 2432x1616

Data source: Amateur hosting facility

Remote source: DeepSkyWest


LDN 1622
OTA: Star-Fire 175 (f/8)
Camera: FLI - PL16070AE
Observatory: Deep Sky West
Red: 15 x 600 seconds
Blue: 21 x 600
Green: 20 x 600
Luminosity: 31 x 600
Hydrogen: 12 x 1800
Total exposure ~22 hours
Image Width: ~1.4 deg
Processed by Alex Woronow using PixInsight, StarNet++, Matlab, Aurora HDR in 2019

LDN 1622 lies in the constellation of Orion and at a distance of about 500 light-years. This is considerably closer than the Great Nebula of Orion, in Orion’s sword.
Observations at microwave frequencies show anomalously strong radiation that correlates with infrared radiation intensities. This correlation is consistent with the “spinning dust model.” This model suggest that extremely small (nanometer) dust grains, rapidly spinning (10-60 GHz), and carrying a dipole electric charge give rise to both the observed microwave radiation and thermal IR radiation.
(Source: largely Wikipedia )



Alex Woronow
License: None (All rights reserved)


  • LDN 1622, 


            Alex Woronow
  • Final
    LDN 1622, 


            Alex Woronow

Sky plot

Sky plot


LDN 1622, 


            Alex Woronow

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