Horsehead Nebula in HOO (Robert H. Kutner)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: 50 Ori) · 50 zet Ori · Alnitak · B33 · Flame Nebula · Horsehead nebula · IC 431 · IC 432 · IC 434 · IC 435 · LBN 944 · LBN 946 · LBN 953 · LBN 954 · NGC 2023 · NGC 2024 · Orion B · Sh2-277 · The star Alnitak (ζ Ori · VdB51

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Horsehead Nebula in HOO

Revision title: Horsehead Nebula in HOO

Powered byPixInsight

Horsehead Nebula in HOO

Revision title: Horsehead Nebula in HOO

Been collecting 81 mm data for this region during the last few hours of every imaging session this past month. There were some real early mornings setting up the scope even though I was using ASIair.

ASIAir pro to acquire ~60 x 300s images @ -10c & 120g for Ha, Sii, & Oiii, ~95% were usable. For RGB, for stars, 10 x 10s images @ -10c & 120g.

Blink / Subframe Select, Calibrated (60 Dark, 60 Flat, 100 Bias), Star Aligned all images with PixInsight. Used the Normalized Scale Gradient for integration.

For Ha, Sii, & Oiii channels: Cropped, DBE, TGV, MLT (& Used the Sii for the Lum), EZ Soft Stretch, StarNet for star removal, and channel combined using LRGB for Ha for R, and Oiii in both the G and B channels. The Sii for Lum was Mask Stretched, STF Stretched, HDR, LHT, TGV, MMT, EZStar Reduction, and LRGB Combined with the PixelMath SHO image.

RGB filter data combined with Channel Combination, Image was masked with an inverted Star Mask and replaced with SHO image using Pixel Math to add the nebulosity around the stars.

Final image was Curves modified w/ & w/o masks. DSE, TGV, MMT, Resampled, Cropped, and Annotated.

Original
B
Final
C

C

Title: Horsehead Nebula in HOO

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QHY294M Pro/ASI294MM Pro
Cloudy Nights
William Optics GT Series

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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	5736757
PixInsight job	Q7D12I289M5JR5OVEPAQPWE88PLRL1N7
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h41m37s.780
RA (top/left)	05h40m08s.589
RA (top/right)	05h37m50s.130
RA (bottom/right)	05h43m07s.172
RA (bottom/left)	05h45m25s.553

Dec (center)	-02°06′39″.16
Dec (top/left)	-01°13′43″.25
Dec (top/right)	-02°14′15″.33
Dec (bottom/right)	-02°59′36″.80
Dec (bottom/left)	-01°59′02″.48

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Horsehead Nebula in HOO

Revision title: Horsehead Nebula in HOO

Horsehead Nebula in HOO

Revision title: Horsehead Nebula in HOO

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Horsehead Nebula in HOO

Revision title: Horsehead Nebula in HOO

Horsehead Nebula in HOO

Revision title: Horsehead Nebula in HOO

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