Great Orion Nebula in HOO - quick & dirty (Aaron Freimark)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: 41 the01 Ori · 42 c Ori · 43 the02 Ori · 44 iot Ori · 45 Ori · De Mairan's nebula · Great Orion Nebula · Hatysa · 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 · Sh2-279 · Sh2-281 · The star 42Ori · The star 45Ori · The star θ1Ori · The star θ2Ori · The star ιOri · Upper Sword · VdB44 · And 1 more.

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Great Orion Nebula in HOO - quick & dirty

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Great Orion Nebula in HOO - quick & dirty

Orion was my first astro-photo — it was your's too, right? 7.5 months later, I revisited this bight beast with some quick shots. I'm quite pleased with the effect. It looks like a crab's claw shrouded in mist. Well, to me at least.

1. Calibration with Flats & Dark; no bias

2. Subframe Selector

3. Star Alignment

4. Local Normalization

5. Image Integration with Linear Fit Clipping

6. Drizzle Integration

7. Dynamic Crop

8. EZ Decon on Ha

9. EZ Denoise on Ha & OIII

10. ArcsinhStretch

11. A touch of Histogram Transformation on each channel

12. Create a mask for Ha from the residual layer of "Extract Wavelet Layers", and use Histogram Transformation to boost mask intensity

13. A touch of Unsharp Mask on Ha using that mask

14. Pixel Math for color combination as HOO

15. Curves Transformation to slightly boost saturation and luminance

Northeast Imagers
INDI Users
Mid-Hudson Astronomical Association (MHAA)

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Status	Advanced success
Started	...
Astrometry.net job	3981869
PixInsight job	LVNMY0YNCT6949AT0COODLMYJXNT8273
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	05h34m58s.99
RA (top/left)	05h38m17s.25
RA (top/right)	05h38m02s.32
RA (bottom/right)	05h31m41s.63
RA (bottom/left)	05h31m54s.90

Dec (center)	-05°27′31″.8
Dec (top/left)	-06°30′40″.9
Dec (top/right)	-04°21′40″.9
Dec (bottom/right)	-04°24′18″.7
Dec (bottom/left)	-06°33′22″.6

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Great Orion Nebula in HOO - quick & dirty

Great Orion Nebula in HOO - quick & dirty

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Great Orion Nebula in HOO - quick & dirty

Great Orion Nebula in HOO - quick & dirty

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