NGC 7023 The Iris Nebula (Jim Raskett)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: HD200099 · HD200775 · Iris Nebula · LBN 475 · LBN 483 · LBN 487 · LDN 1167 · LDN 1168 · LDN 1170 · LDN 1171 · LDN 1172 · LDN 1173 · LDN 1174 · NGC 7023 · T Cep

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NGC 7023 The Iris Nebula

Revision title: More Dust, Less Stars

Powered byPixInsight

NGC 7023 The Iris Nebula

Revision title: More Dust, Less Stars

"The Iris Nebula (also known as NGC 7023 and Caldwell 4) is a bright reflection nebula in the constellation Cepheus. The designation NGC 7023 refers to the open cluster within the larger reflection nebula designated LBN 487.

The nebula, which shines at magnitude +6.8, is illuminated by a magnitude +7.4 star designated SAO 19158.It is located near the Mira-type variable star T Cephei, and near the bright magnitude +3.23 variable star Beta Cephei (Alfirk). It lies 1,300 light-years away and is six light-years across".

Another capture/process from my five night spree last week.
I feel like a kid in a candy shop after 4 months of bad skies!
The second of three data sets.

2X Drizzle in Pixinsight.

I like some dustiness, but not an overpowering amount. Dust is tough to capture in Bortle 7 skies (for me), so I was happy to settle on the mild dark background dust.

Comments welcome1

Original
B
C
Final
D

B

Title: Complete Reprocess

Description: Started with a new run of WBPP with very careful background extraction so not to disturb the dust.
Also used a new (to me) Pixinsight process called "ExponentialTransformation" which was very helpful in bringing out the dusty areas.
I had rotated the original process, so I also rotated this process for comparison.
I am normally not a "dusty" guy, but this process is interesting!
Enjoy, and comments welcome!

Jim

Uploaded: ...

C

Title: More Stars (no reduction)

Uploaded: ...

D

Title: More Dust, Less Stars

Description: Exponential Transformation to bring out more background dust, sharpening, hue change on NGC 7023.

Uploaded: ...

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Status	Advanced success
Started	...
Astrometry.net job	7833684
PixInsight job	8BLMSW64MFJ295WIVVPJ1QHD1619N01F
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	21h01m46s.63
RA (top/left)	21h14m05s.00
RA (top/right)	21h14m19s.27
RA (bottom/right)	20h48m13s.48
RA (bottom/left)	20h50m29s.35

Dec (center)	+68°09′12″.4
Dec (top/left)	+67°00′33″.3
Dec (top/right)	+69°20′00″.10
Dec (bottom/right)	+69°14′05″.0
Dec (bottom/left)	+66°55′14″.6

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NGC 7023 The Iris Nebula

Revision title: More Dust, Less Stars

NGC 7023 The Iris Nebula

Revision title: More Dust, Less Stars

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NGC 7023 The Iris Nebula

Revision title: More Dust, Less Stars

NGC 7023 The Iris Nebula

Revision title: More Dust, Less Stars

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