Sharpless in Perseus -- The Fossil Footprint Nebula [Sh2-206] (G400)

Celestial hemisphere: Northern · Constellation: Perseus (Per) · Contains: NGC 1491 · Sh2-206

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Sharpless in Perseus -- The Fossil Footprint Nebula [Sh2-206]

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Sharpless in Perseus -- The Fossil Footprint Nebula [Sh2-206]

This was intended to be a longer term project in SHO but due to the ongoing disruption because of bad weather conditions this was set on hold. This is an (hopefully) intermediate processing step with a good proportion of Ha and an Oiii pinch of salt so far.

To try to answer the question whether so much Ha was necessary I did some intermediate integrations (without any processings) and applied the Image Analysis --> Noise Evaluation Script in PI:

MASTER_Ha_[9.7_hrs] = 57.62%

MASTER_Ha_[12.8_hrs] = 54,37%

MASTER_Ha_[15.0_hrs] = 53,70%

MASTER_Ha_[18.0_hrs] = 52,46%

In this respect I think that the last two Ha sessions contributed to noise reduction but only marginally and could have been invested other projects. Anyway I enjoyed those November nights under clear skies and hope for better weather soon!

Here the Ha version can be found:

Clear skies & and thanks for watching!

Original
Final
B

B

Description: H-HO-O_[21.3_hrs]_k_[i_cropped] ---> applied some gentle convolution

Uploaded: ...

Sharpless2 Objects
Takahashi Refractors

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Status	Advanced success
Started	...
Astrometry.net job	4116446
PixInsight job	GTLRJKGZPVV7M0PS4OZOM1OE5EP3JF6E
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	04h03m35s.708
RA (top/left)	04h06m32s.424
RA (top/right)	03h59m19s.413
RA (bottom/right)	04h00m43s.890
RA (bottom/left)	04h07m49s.618

Dec (center)	+51°16′36″.95
Dec (top/left)	+51°48′21″.35
Dec (top/right)	+51°29′21″.20
Dec (bottom/right)	+50°44′36″.33
Dec (bottom/left)	+51°03′18″.16

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Sharpless in Perseus -- The Fossil Footprint Nebula [Sh2-206]

Sharpless in Perseus -- The Fossil Footprint Nebula [Sh2-206]

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Sharpless in Perseus -- The Fossil Footprint Nebula [Sh2-206]

Sharpless in Perseus -- The Fossil Footprint Nebula [Sh2-206]

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