Helix Nebula, a Ha/OIII bi-color IMG taken from CPH, DK (Niels V. Christensen)

Celestial hemisphere: Southern · Constellation: Aquarius (Aqr) · Contains: HD213056 · HD213069 · Helix Nebula · NGC 7293

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Helix Nebula, a Ha/OIII bi-color IMG taken from CPH, DK

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Helix Nebula, a Ha/OIII bi-color IMG taken from CPH, DK

Estimate that it will take 3 years to make a "final" bi-color IMG of the Helix Nebula and 2021 was the 1. years exposure effort.

I had to re-adjust the 16" tube balance in the fork mount in order to guide properly, the tube was nearly horizontal when the subs was taken!

I can't "go lower" than this object :-)
FYI, some IMG SW process steps shown here,
http://www.dl.dropboxusercontent.com/s/cxy90pfdo6rxq5v/HelixNebIntermidiateData.jpg?raw=1

The WF IMG "B" is a BW one that consist of L, Ha, OIII, SII info. Total exposure time: 17x60, 21x300sec.

As usual it's taken in a light polluted area, Bortle 6 sky looking south, Bortle 7 sky the other directions/ surroundings.
My home build observatory is placed in my front yard/in the "red light" pollution zone, have a look here,
Red Zone
Kind regards Niels

Original
B
Final
C
D

B

Description: The WF BW version, taken with a WO FLT-110 F7 refractor. Please check the description field for exposure info. :-)

Uploaded: ...

C

Description: A PI BlurXter AI4 & NoiseXter version :-)

Uploaded: ...

D

Description: The linear stretched BXT, NXT SW version.

Uploaded: ...

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Status	Advanced success
Started	...
Astrometry.net job	9114564
PixInsight job	S9FP4FWFDUM3KI8RP848ITSVBFWS7BX8
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	22h29m35s.324
RA (top/left)	22h30m20s.655
RA (top/right)	22h28m42s.991
RA (bottom/right)	22h28m49s.929
RA (bottom/left)	22h30m27s.606

Dec (center)	-20°51′44″.96
Dec (top/left)	-20°42′38″.10
Dec (top/right)	-20°45′00″.72
Dec (bottom/right)	-21°00′50″.53
Dec (bottom/left)	-20°58′28″.12

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Helix Nebula, a Ha/OIII bi-color IMG taken from CPH, DK

Helix Nebula, a Ha/OIII bi-color IMG taken from CPH, DK

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Helix Nebula, a Ha/OIII bi-color IMG taken from CPH, DK

Helix Nebula, a Ha/OIII bi-color IMG taken from CPH, DK

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D

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