The Lobster Claw and Bubble Nebulae (LRGBHOO) (Andy Brown)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: 4 Cas · Bubble Nebula · LBN 533 · LBN 536 · LBN 537 · LBN 540 · LBN 542 · LBN 543 · LBN 544 · LBN 547 · LBN 548 · LBN 549 · LDN 1225 · LDN 1226 · LDN 1227 · LDN 1229 · LDN 1230 · LDN 1231 · LDN 1233 · LDN 1234 · M 52 · NGC 7510 · NGC 7538 · NGC 7635 · NGC 7654 · Sh2-157 · Sh2-158 · Sh2-159 · Sh2-161 · Sh2-162 · And 1 more.

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The Lobster Claw and Bubble Nebulae (LRGBHOO)

Revision title: Reprocess and alternate colour palette

Link: https://flic.kr/p/2nXgcBv

Powered byPixInsight

The Lobster Claw and Bubble Nebulae (LRGBHOO)

Revision title: Reprocess and alternate colour palette

Link: https://flic.kr/p/2nXgcBv

Despite a full moon and intermittent clouds I managed to grab some time on this area in Cassiopeia. I had some horrible gradients to deal with but managed to suppress them enough for a presentable image. I used the Ha signal as a synthetic Luminance to try and boost the fainter areas. There's so much interest in this region I'll definitely revisit it in better conditions to improve the OIII signal and add SII.

Original
C
D
Final
E

C

Title: Enhance Core highlights

Uploaded: ...

D

Title: Minor tweaks to highlights

Uploaded: ...

E

Title: Reprocess and alternate colour palette

Description: I decided to reprocess this from scratch to try and get more detail in the Bubble and other brighter areas of the image. I used Arcsinh curves adjustment layers in Photoshop rather than APP to do the initial stretch. This gave a more uniform starting point but made colours more difficult to bring out.

Uploaded: ...

ZWO ASI294MM Pro Images
Imaged with APT
FriendlyCosmos
UK Astro-Imaging
Takahashi Refractors

Emission Nebulae

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Status	Advanced success
Started	...
Astrometry.net job	6517470
PixInsight job	HT3JGBM8X1Y0PN92Y1LNSPEIA5ZGDDFY
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	23h17m47s.50
RA (top/left)	23h26m20s.84
RA (top/right)	23h27m44s.58
RA (bottom/right)	23h08m18s.60
RA (bottom/left)	23h08m48s.74

Dec (center)	+60°58′34″.5
Dec (top/left)	+59°18′28″.10
Dec (top/right)	+62°34′01″.9
Dec (bottom/right)	+62°36′24″.9
Dec (bottom/left)	+59°20′51″.3

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The Lobster Claw and Bubble Nebulae (LRGBHOO)

Revision title: Reprocess and alternate colour palette

The Lobster Claw and Bubble Nebulae (LRGBHOO)

Revision title: Reprocess and alternate colour palette

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The Lobster Claw and Bubble Nebulae (LRGBHOO)

Revision title: Reprocess and alternate colour palette

The Lobster Claw and Bubble Nebulae (LRGBHOO)

Revision title: Reprocess and alternate colour palette

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E

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