M16 (Eagle Nebula) (Ben Hayes)

Celestial hemisphere: Southern · Constellation: Serpens (Ser) · Contains: Eagle Nebula · HD168075 · HD168076 · HD168097 · HD168136 · HD168137 · HD168183 · IC 4703 · LBN 67 · M 16 · NGC 6611 · Sh2-49 · Star Queen · Star Queen nebula

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M16 (Eagle Nebula)

Revision title: M16 (Eagle Nebula)

Powered byPixInsight

M16 (Eagle Nebula)

Revision title: M16 (Eagle Nebula)

My first attempt at imaging a nebula region with my vintage LX200 SCT. It was a spur-of-the-moment decision to see if the old thing could even do it. I am excited to experiment more with it this summer, but in the meantime I am finding the H-O-O or S-H-O processing techniques to be frustrating and exceedingly difficult. I have read and read and watched video after video, but I just don’t have the skills and knowledge to do it successfully. I'm afraid it shows in image C, my first attempt at rendering an image in the S-H-O color palettes. The RGB versions (images A and B) are not much better, but I am sharing them here on Astrobin in hopes that some nice person will have some suggestions for improvement.

There is also lot of noise and imperfections in the image for several reasons: (1) I need skills and experience at post-processing; (2) a very short integration time (only a little over three hours); (3) the target is low on the horizon at my latitude (sky glow and poorer guiding) and (4) I accidentally switched the gain on the camera between the first night (gain=120) and the second night (gain=390). All in all, this is not one of my prouder moments. 🫢

Clear skies! 🔭

Original
Final
B
C

B

Title: M16 (Eagle Nebula)

Description: Same as Image A (original), but without the acquisition details.

Uploaded: ...

C

Title: M16 (Eagle Nebula)

Description: H-S-O version

Uploaded: ...

Cloudy Nights

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Status	Advanced success
Started	...
Astrometry.net job	8037658
PixInsight job	VVWF0MDETH9OJVEEEFJI4N3Q2UAYQCB3
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	18h18m45s.181
RA (top/left)	18h18m36s.900
RA (top/right)	18h17m07s.668
RA (bottom/right)	18h18m53s.315
RA (bottom/left)	18h20m22s.495

Dec (center)	-13°47′25″.46
Dec (top/left)	-13°20′55″.73
Dec (top/right)	-13°59′35″.91
Dec (bottom/right)	-14°14′07″.43
Dec (bottom/left)	-13°35′15″.37

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M16 (Eagle Nebula)

Revision title: M16 (Eagle Nebula)

M16 (Eagle Nebula)

Revision title: M16 (Eagle Nebula)

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M16 (Eagle Nebula)

Revision title: M16 (Eagle Nebula)

M16 (Eagle Nebula)

Revision title: M16 (Eagle Nebula)

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