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Old 23-07-2021, 03:58 PM
Startrek (Martin)
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NGC 3576 Statue of Liberty Nebula ( first image )

Clear night on Wednesday so decided to image the a Statue of Liberty Nebula for the first time. Moon was around 85% lighting up the whole sky
As the nebula was quickly decending in the South SW at sunset I only had less than 2 hours to capture it before being to low

8” f5 GSO newt
Skywatcher EQ6-R mount
ZWOASI2600MC set in Ascom Gain 100 Lowest Read Noise cooled to -10C
Optolong L Extreme filter
38 x 3 minute dithered guided subs
PHD2 Multistar guiding ( 0.65 arc sec error total )
Tracking and Goto EQMOD and Ascom Stellarium
Framed focused and captured with APT
Subs reviewed in Astap
Stacked in DSS
Processed in Startools V1.7 Compose Linear OSC Bi Colour ( Matrix )


SHO versions
Synthetic Luminance version

Obviously needed significantly more data on this object , preferably without the moon blasting across my OTA
This region has an immensely dense Star field so used the shrink module for dimming and Star size reduction plus a fair amount of noise caused by moon glare which had to be reduced
Happy to snag my first Statue of Liberty, can only improve on this effort

Comments welcome
Thanks
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Old 23-07-2021, 04:17 PM
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Considering where it is you have done very well indeed and of course the Moon inhibits things...but to my eye it looks rather decent.
Alex
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Old 23-07-2021, 04:19 PM
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PKay (Peter)
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Persisting through the Moon noise M

You have done well

I have gone fishing...

Addendum:
I think you should go back to the Beginners forum M.
Not because your work is not up to par, it is, but to keep the forum alive

Last edited by PKay; 23-07-2021 at 04:31 PM.
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Old 23-07-2021, 06:59 PM
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Looks good overall but the image is black clipped so you have lost some background stars there.

The Ha looks the best.

Greg.
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Old 23-07-2021, 07:06 PM
Startrek (Martin)
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Originally Posted by xelasnave View Post
Considering where it is you have done very well indeed and of course the Moon inhibits things...but to my eye it looks rather decent.
Alex
Thanks Alex 👍
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Old 23-07-2021, 07:09 PM
Startrek (Martin)
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Quote:
Originally Posted by PKay View Post
Persisting through the Moon noise M

You have done well

I have gone fishing...

Addendum:
I think you should go back to the Beginners forum M.
Not because your work is not up to par, it is, but to keep the forum alive
Peter,
Thanks mate
Clear nights (moon or no moon) you have to take every opportunity here on the coast
Martin
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Old 23-07-2021, 07:15 PM
Startrek (Martin)
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Quote:
Originally Posted by gregbradley View Post
Looks good overall but the image is black clipped so you have lost some background stars there.

The Ha looks the best.

Greg.
Thanks Greg
It’s almost impossible to clip your data in Startools ( have a read on the website about the software ) good observation though.You don’t use histograms and curve charts to control stretching etc ....
I used the Shrink module to dim and reduce the Star field and Super Structure to peg back the brightness ( probably a little too much I’d say as some outer detail was lost )
Cheers
Martin
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Old 23-07-2021, 08:36 PM
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Nikolas (Nik)
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2nd one for me nice work
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Old 24-07-2021, 07:20 AM
Startrek (Martin)
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2nd one for me nice work
Thanks Nik
Appreciate your comment
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