Horsehead Nebula, the Flame, and taming Alnitak (Paul Macklin)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: 48 Ori · 48 sig Ori · 50 Ori) · 50 zet Ori · Alnitak · B33 · Flame Nebula · HD290683 · HD290686 · HD290687 · HD290690 · HD290691 · HD290703 · HD290704 · HD290771 · HD290772 · HD290773 · HD290812 · HD290814 · HD290815 · HD290852 · HD290853 · HD290854 · HD294227 · HD294228 · HD294229 · HD294239 · HD294241 · HD294242 · HD294268 · And 73 more.

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Horsehead Nebula, the Flame, and taming Alnitak

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Horsehead Nebula, the Flame, and taming Alnitak

I tried a test this morning framing the Horsehead Nebula and the Flame Nebula, leaving plenty of vertical space for all the beautiful hydrogen. But as we all know. Alnitak can often overwhelm all the details on the edge of the Flame Nebula.

So I limited exposures to 60 seconds, and took 180 with my L-extreme. Overall, this the best I've done controlling Altinak so far, although the star itself is still fairly washed out. We also see the persistent L-extreme halos.

I'll try this again soon with 180 x 60 seconds, no filter next and see what we get. I'll also compare 360 x 30 seconds when I can.

Thanks for looking and clear skies!

Final
Original
B
C

B

Title: Crop around the Horsehead Nebula

Uploaded: ...

C

Title: Crop around the Flame Nebula (and Alnitak)

Uploaded: ...

Hydrogen and Oxygen Narrowband Only!

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Status	Advanced success
Started	...
Astrometry.net job	6490653
PixInsight job	CQ45Q9YGXPNK9HWCBUM9VYCJ4N3SUDSK
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h39m43s.50
RA (top/left)	05h35m28s.45
RA (top/right)	05h35m33s.37
RA (bottom/right)	05h43m57s.100
RA (bottom/left)	05h43m52s.44

Dec (center)	-02°15′47″.8
Dec (top/left)	-01°34′42″.8
Dec (top/right)	-02°58′52″.6
Dec (bottom/right)	-02°56′50″.6
Dec (bottom/left)	-01°32′40″.10

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Horsehead Nebula, the Flame, and taming Alnitak

Horsehead Nebula, the Flame, and taming Alnitak

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Horsehead Nebula, the Flame, and taming Alnitak

Horsehead Nebula, the Flame, and taming Alnitak

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