Sh2-132 (LBN 473) “Lion Nebula” in SHO (Stefano Zamblera)

Sh2-132 (LBN 473) “Lion Nebula” in SHO

Revision title: Sh2-132 (LBN 473) “Lion Nebula” in SHO - crop

Link: https://www.xiulong.it/tianwensheying/2023/07/28/sh2-132-lbn-473-lion-nebula-in-sho/

Link to TIFF/FITS: https://e.pcloud.link/publink/show?code=XZTnfBZYiq4u1Hfoq7peMhCX6PkhhkRh387

This work integrates a lot of subframes taken in each narrowband channel from March 2022 9th to September 2022 19th.

After subframing weight by stars numbers and insepction I discarded about 30% of the whole data.
Normal narrowband workflow followed ‘till Ha, Sii and Oiii single channel master integration; then I proceed with 2 channel combinations for SHO palette and HOO color mapping.
SHO, HOO integration and Ha master were then applied to Dynamic BG removal, SPCol.Calibration (SHO and HOO) deconvolution and denoise.

After stretching them all, SHO and HOO were worked by color filter mask and curves modification, denoised and finally submitted to StarXterminator for starless and stars layer; the same for Ha but without any color-mask/curves modification.

I finally worked in Photoshop with starless under stars separate layer groups blending in screen mode, with local pixel fixing and necessary adjustements.

Crop version focused about Lion Nebula.

Complete framelist : Sh2-132-framelist Download

Photoshop master file here (pCloud drive) : https://e.pcloud.link/publink/show?code=XZhnfBZkepB6EnXto4Mfs5y9WuPhQv4Jhlk

.xisf PixInSight SHO integration master here (pCloud drive) : https://e.pcloud.link/publink/show?code=XZTnfBZYiq4u1Hfoq7peMhCX6PkhhkRh387

Original
B
Final
C
D

B

Title: Sh2-132 (LBN 473) “Lion Nebula” in SHO - starless

Description: Starless stage in Sh2-132 processing workflow

Uploaded: ...

C

Title: Sh2-132 (LBN 473) “Lion Nebula” in SHO - crop

Description: Crop focusing about Lion Nebula

Uploaded: ...

D

Title: Sh2-132 (LBN 473) “Lion Nebula” in SHO - crop, starless

Description: Starless version of crop image, focusing on Lion Nebula.

Uploaded: ...

	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
Other
Unknown

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
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Status	Advanced success
Started	...
Astrometry.net job	8149896
PixInsight job	NFG5747C7YRK726IRFMQOX5QE1PMK6KD
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	22h19m06s.16
RA (top/left)	22h24m39s.44
RA (top/right)	22h06m35s.88
RA (bottom/right)	22h13m59s.11
RA (bottom/left)	22h31m28s.70

Dec (center)	+55°51′30″.0
Dec (top/left)	+57°26′26″.2
Dec (top/right)	+56°00′37″.8
Dec (bottom/right)	+54°15′42″.0
Dec (bottom/left)	+55°37′31″.4

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