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Contains:  NGC 6530, M 8, Lagoon nebula, Hourglass nebula, NGC 6523, NGC 6526, The star 9Sgr, The star 7Sgr
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The Lagoon Nebula in SHO

Acquisition type: Electronically-Assisted Astronomy (EAA)

Technical card

Resolution: 4635x3197

Dates:July 7, 2019July 8, 2019July 9, 2019

Baader H-Alpha 36mm 7nm: 35x300" (gain: 16.00) -20C bin 1x1
Baader O III 36mm 8nm: 25x300" (gain: 16.00) -20C bin 1x1
Baader SII 36mm 8nm: 25x300" (gain: 16.00) -20C bin 1x1

Integration: 7.1 hours

Darks: ~50

Flats: ~40

Bias: ~100

Avg. Moon age: 6.36 days

Avg. Moon phase: 39.39%

Bortle Dark-Sky Scale: 4.00

Mean FWHM: 2.50

Temperature: 20.00 job: 2791917

RA center: 271.036 degrees

DEC center: -24.316 degrees

Pixel scale: 0.651 arcsec/pixel

Orientation: 355.581 degrees

Field radius: 0.509 degrees

Locations: Williamson AZ Home, Prescott, Arizona, United States

Data source: Backyard


Modified SHO color blend using Pixinsight's PixelMath process:

Red: Ha 50%+ SII 50%
Green: Ha 25% + SII 25% + OIII 50%
Blue: OIII 100%

I just like it better than the "normal" SHO mixture.



Alex Roberts
License: None (All rights reserved)


Sky plot

Sky plot


The Lagoon Nebula in SHO, 


            Alex Roberts