Celestial hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  Great Orion Nebula  ·  IC 420  ·  Lower Sword  ·  M 42  ·  M 43  ·  Mairan's Nebula  ·  NGC 1973  ·  NGC 1975  ·  NGC 1976  ·  NGC 1977  ·  NGC 1980  ·  NGC 1981  ·  NGC 1982  ·  Orion Nebula  ·  The star 42Ori  ·  The star 45Ori  ·  The star θ1Ori  ·  The star θ2Ori  ·  The star ιOri  ·  Upper Sword  ·  the Running Man Nebula
Orion's Sword, 


Orion's Sword
Powered byPixInsight

Orion's Sword

Orion's Sword, 


Orion's Sword
Powered byPixInsight

Orion's Sword

Acquisition details

Dec. 12, 2021
76×600(12h 40′)
12h 40′
Avg. Moon age:
8.74 days
Avg. Moon phase:

Basic astrometry details

Astrometry.net job: 5438681

RA center: 05h34m55s.9

DEC center: -05°1633

Pixel scale: 2.568 arcsec/pixel

Orientation: 90.605 degrees

Field radius: 1.480 degrees

Resolution: 3307x2509

File size: 3.3 MB

Locations: Sevilla city, Sevilla, Spain

Data source: Backyard


The color mapping is based on Principal Component Analysis transformation. 

Experimental background modeling by 2D-spline optimization.

This is an HDR composition as usual with this target, to try to get all the way down to the core and reveal the Trapezium. 

Bortle 8-9 do not help even with (mild) narrowband filters. Fortunately this is an extremely bright object (for our standards anyway) so it came out nicely. As long as you don't dig too much in the background...

North is left.

Hα     : 20x600s, 18x120s, 10x60s
[O III]: 20x600s, 18x120s, 10x60s
[S II] : 23x600s, 18x120s, 10x60s


Sky plot

Sky plot


Orion's Sword,