Sh 2-261 Lowers Nebula in LRGBSHO (Gary Seven)

Celestial hemisphere: Northern · Constellation: Orion (Ori) · Contains: HD251900 · HD251924 · HD251979 · HD252004 · HD252088 · HD252135 · HD252245 · HD252359 · HD252360 · HD252387 · HD252540 · HD252650 · HD252678 · HD252791 · HD252841 · HD252842 · HD252905 · HD252906 · HD252954 · HD252955 · HD252974 · HD252975 · HD253024 · HD253111 · HD41997 · LBN 862 · LBN 863 · LBN 864 · LDN 1587 · Sh2-261

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Sh 2-261 Lowers Nebula in LRGBSHO

Revision title: Sh2-261 Lowers Nebula - PixInsight Reprocessed

Powered byPixInsight

Sh 2-261 Lowers Nebula in LRGBSHO

Revision title: Sh2-261 Lowers Nebula - PixInsight Reprocessed

Lowers Nebula, this one combining all of the filters. I was hoping for better separation of the S-II and H-a, but at some point I just had to say "stop!" Time to move on. It is my intention to revisit all of my images as my understanding of post-processing increases. But for now, on to the next learning experience.

When I look at this nebula I see an Orc face. The two bright stars in the center region make the eyes, and the Red region bottom center form the fangs.

This nebula has an excellent S-II signal, but much weaker in O-III.

Original
B
Final
C

B

Title: Sh2-261 Lowers Nebula - the Angry Orc Face RGB + HSO

Description: RGB star layer not stretched combined with narrow band, HSO. The O-III signal was pretty weak, so it was boosted. The rotational angle in this composition. Can you see the face? The reddest part of the nebula marks the eyes, the fangs and jawline is blue.

Uploaded: ...

C

Title: Sh2-261 Lowers Nebula - PixInsight Reprocessed

Description: Shot over the previous winter, now reprocessed with PixInsight.

This was originally posted as three different images (different filter combinations) before I was aware of the site etiquette. With this revision, I have deleted the other two stand-alones.

Uploaded: ...

Cloudy Nights
ZWO ASI2600MM Pro
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Arizona Astrophotographers

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Status	Advanced success
Started	...
Astrometry.net job	8686390
PixInsight job	XSHASIM23ZL2MMBMC9P64TG1FYZV4B8W
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	06h09m15s.820
RA (top/left)	06h12m13s.790
RA (top/right)	06h08m51s.520
RA (bottom/right)	06h06m17s.710
RA (bottom/left)	06h09m40s.223

Dec (center)	+15°47′42″.38
Dec (top/left)	+15°28′35″.90
Dec (top/right)	+16°34′08″.33
Dec (bottom/right)	+16°06′41″.80
Dec (bottom/left)	+15°01′17″.75

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Sh 2-261 Lowers Nebula in LRGBSHO

Revision title: Sh2-261 Lowers Nebula - PixInsight Reprocessed

Sh 2-261 Lowers Nebula in LRGBSHO

Revision title: Sh2-261 Lowers Nebula - PixInsight Reprocessed

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Sh 2-261 Lowers Nebula in LRGBSHO

Revision title: Sh2-261 Lowers Nebula - PixInsight Reprocessed

Sh 2-261 Lowers Nebula in LRGBSHO

Revision title: Sh2-261 Lowers Nebula - PixInsight Reprocessed

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