IC 405 Flaming Star Nebula in HSO (Aaron Freimark)

Celestial hemisphere: Northern · Constellation: Auriga (Aur) · Contains: 16 Aur · 17 AR Aur · 18 Aur · 19 Aur · AE Aur · Flaming Star Nebula · IC 405 · Sh2-229 · The star 16Aur · The star 19Aur

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IC 405 Flaming Star Nebula in HSO

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IC 405 Flaming Star Nebula in HSO

The "Flaming Star Nebula." What more is there to say? Sometimes the astronomers pick the right name.

Shot last night from my driveway, using 45 10-minute images. Lots of Hydrogen (red) and Sulphur (yellow) in there. It's about 1,500 light years from us.

Process:

1. WeightedBatchProcessing, Subframe Selector, Image Registration, Local Normalization, Image Integration, Drizzle Integration, Dynamic Crop

2. Dynamic Background Extraction

3. EZ Denoise

4. ArcsinhStretch then Histogram Transformation

5. EZ Star Reduce

6. PixelMath R:Ha / G: SII / B: OIII

7. Background Neutralization

8. SCNR to reduce green star cast

9. Duplicate Ha and apply a touch of HT; use this as L in LRGBCombination

10. Extract Wavelet Layers, and discard everything but the residual layer. Use HT to brighten this. Use this image as a mask on RGB.

11. Using this residual mask, apply Curves Transformation to tweak colors.

12. Invert the mask, and use Curves Transformation again to reduce saturation on the background.

13. Invert the mask again (to mask the background the nebula), and use Unsharp Mask lightly

14. Bonus Round: Export 16-bit TIFF to Photoshop, and run “Star Diffraction Spikes Fat Stars” from ProDigital Astronomy Tools, for that little extra something.

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

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Status	Advanced success
Started	...
Astrometry.net job	4014670
PixInsight job	5DLKY44GCIXC5SYONICWXE0CST8C1MJ4
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	05h15m59s.99
RA (top/left)	05h11m46s.80
RA (top/right)	05h20m21s.83
RA (bottom/right)	05h20m19s.15
RA (bottom/left)	05h11m31s.28

Dec (center)	+34°12′59″.5
Dec (top/left)	+33°17′54″.7
Dec (top/right)	+33°19′46″.2
Dec (bottom/right)	+35°07′43″.5
Dec (bottom/left)	+35°05′57″.2

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IC 405 Flaming Star Nebula in HSO

IC 405 Flaming Star Nebula in HSO

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IC 405 Flaming Star Nebula in HSO

IC 405 Flaming Star Nebula in HSO

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