Core of the Lion Nebula Sh2-132 (Barry Wilson)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: Sh2-132

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Core of the Lion Nebula Sh2-132

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Core of the Lion Nebula Sh2-132

Having imaged this emission nebula in Cepheus using our wider FOV rig comprising FSQ106/QSI683, Steve and I wanted to concentrate on the central area. We have gathered a lot of data and it has helped with this deep study. I particularly like the stream of OIII, resembling a searchlight beam in my imagination, and the characters revealed in the dark molecular cloud. Is that a leaping dog I see . . .

Data acquisition: Barry Wilson & Steve Milne
Processing: Barry Wilson

B

Description: SHO initial colour linear combination; stretched by using the STF transferred to the HT. The stars corrected for magenta halos

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C

Description: Curves comprising multiple adjustments to channels applied to starless image; applied twice to image

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D

Description: Starless image after Curves adjustment; I will sometimes use Convolution os default values to blur and remove chrominance artefacts

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E

Description: Ha channel, deconvolved and stretched. I use this as luminance channel to combine with the SHO colour image.

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F

Description: Blue colour mask from starless image with a strong Convolution applied to blur; apply to starless image to permit colour adjustment to revealed "blue" OIII areas

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G

Description: Blue colour mask with protection for stars if used after Ha has been combined as luminance layer. The stars within the white mask areas are first isolated from a stars mask by using PixelMath (Blue Mask*Stars Mask) and then the resultant image is subtracted from the Blue Mask

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Sharpless2 Objects
Entre Encinas y Estrellas (e-EyE)
Narrowband imaging

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Status	Advanced success
Started	...
Astrometry.net job	4942436
PixInsight job	GAD1K3717UFAC7KUNBAFF8OHPQAPK947
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	22h19m49s.380
RA (top/left)	22h17m50s.639
RA (top/right)	22h17m50s.834
RA (bottom/right)	22h21m46s.190
RA (bottom/left)	22h21m50s.110

Dec (center)	+56°08′42″.55
Dec (top/left)	+56°29′06″.75
Dec (top/right)	+55°48′24″.17
Dec (bottom/right)	+55°48′11″.50
Dec (bottom/left)	+56°28′53″.72

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Core of the Lion Nebula Sh2-132

Core of the Lion Nebula Sh2-132

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Core of the Lion Nebula Sh2-132

Core of the Lion Nebula Sh2-132

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G

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