NGC7635 Bubble Nebula + Sh2-157 Lobster Claw + Field (Narrowband + True Color Stars) (Douglas Triggs)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: Bubble Nebula · HD219286 · HD219460 · HD219634 · HD220016 · HD220057 · HD220074 · HD220102 · HD220167 · HD220770 · HD240233 · HD240244 · HD240245 · HD240248 · HD240250 · HD240252 · HD240253 · HD240256 · HD240264 · LBN 533 · LBN 536 · LBN 537 · LBN 540 · LBN 542 · LBN 543 · LBN 544 · LBN 547 · LBN 548 · LBN 549 · LDN 1229 · And 13 more.

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NGC7635 Bubble Nebula + Sh2-157 Lobster Claw + Field (Narrowband + True Color Stars)

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NGC7635 Bubble Nebula + Sh2-157 Lobster Claw + Field (Narrowband + True Color Stars)

The field around the Bubble Nebula and the Lobster Claw Nebulas (NGC7635 and Sh2-157) including M52, several more NGC objects, etc.

This... Isn't SHO. It's vaguely in the neighborhood of SHO, but it's actually the result of fairly complicated pixel math. SII dominates the R channel (but Hɑ is involved), the G channel is a mix of Hɑ + OIII and a bit of SII (subtracted), and the blue channel is pretty much straight up OIII. Yeah, uh, I should stop watching videos of people processing data, it gives me crazy ideas.

After all that was done, I composited the true-color stars back in.

Anyway, reasonably happy with this overall, although it's kind of "kitchen sink" kind of framing; not sure I really could have done a whole lot better. There sure are a lot of different textures in this one, aren't there?

Original
B
C
Final
D

B

Title: SHO

Description: Straight up SHO version for comparison.

Uploaded: ...

C

Title: SOO

Description: SOO version for comparison. I rather like this one, though it's not quite as dynamic as the original.

Uploaded: ...

D

Description: Backed things off a bit in terms of color, but increased the dynamic range of the luminosity.

Uploaded: ...

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Status	Advanced success
Started	...
Astrometry.net job	6351982
PixInsight job	8RGIRXQ938I3OSFOPP4ZGR08DWPA0WGZ
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	23h17m13s.48
RA (top/left)	23h14m20s.11
RA (top/right)	23h08m00s.88
RA (bottom/right)	23h19m53s.44
RA (bottom/left)	23h26m56s.27

Dec (center)	+60°53′20″.9
Dec (top/left)	+62°16′26″.8
Dec (top/right)	+60°01′21″.3
Dec (bottom/right)	+59°29′56″.3
Dec (bottom/left)	+61°42′49″.1

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NGC7635 Bubble Nebula + Sh2-157 Lobster Claw + Field (Narrowband + True Color Stars)

NGC7635 Bubble Nebula + Sh2-157 Lobster Claw + Field (Narrowband + True Color Stars)

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NGC7635 Bubble Nebula + Sh2-157 Lobster Claw + Field (Narrowband + True Color Stars)

NGC7635 Bubble Nebula + Sh2-157 Lobster Claw + Field (Narrowband + True Color Stars)

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