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, Sergio Díaz
Orion's Sword
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Orion's Sword

Orion's Sword, Sergio Díaz
Orion's Sword
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Orion's Sword

Equipment

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Acquisition details

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Description

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

Comments

Sky plot

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Histogram

Orion's Sword, Sergio Díaz