Hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  Checkmark Nebula  ·  Lobster Nebula  ·  M 17  ·  NGC 6618  ·  Swan Nebula  ·  omega Nebula
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Omega Nebula in SHO, 


            Trevor Jones
Omega Nebula in SHO
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Omega Nebula in SHO

Technical card

Imaging telescopes or lenses: Sky-Watcher Esprit 150 ED Super APO

Imaging cameras: Starlight Xpress Trius PRO-694 Mono

Mounts: Sky-Watcher EQ8-R Pro

Guiding cameras: Starlight Xpress Lodestar Autoguider X2

Focal reducers: Sky-Watcher Field Flattener Esprit 150

Software: Astro Photography Tool APT

Filters: Astronomik 6nm SII  ·  Astronomik 6nm OIII  ·  Astronomik 6nm Ha

Accessory: Starlight Xpress filter-wheel 7x1,25"

Dates:May 13, 2020May 30, 2020

Astronomik 6nm Ha: 20x300" bin 1x1
Astronomik 6nm OIII: 15x300" bin 1x1
Astronomik 6nm SII: 16x300" bin 1x1

Integration: 4.2 hours

Darks: ~15

Avg. Moon age: 14.45 days

Avg. Moon phase: 57.43%

Bortle Dark-Sky Scale: 7.00

Basic astrometry details

Astrometry.net job: 4186426

RA center: 18h 21' 6"

DEC center: -16° 11' 52"

Pixel scale: 1.266 arcsec/pixel

Orientation: 139.184 degrees

Field radius: 0.356 degrees

Resolution: 1200x1629

Locations: My Backyard, St. Catharines, Ontario, Canada

Data source: Backyard


Here is the Omega Nebula in SHO (Hubble Palette) captured from my backyard.

The cloud has put a lid on any new data so far in 2021, so I've been going back to old data from last year and reprocessing it.

I've been experimenting more and more with PixInsight. I have found by using both PI and Photoshop throughout my workflow, I can create some truly incredible images.


Sky plot

Sky plot


Omega Nebula in SHO, 


            Trevor Jones