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Old 11-06-2023, 04:01 PM
PaulSthcoast (Paul)
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M20 Triffid Nebulea

Hi everyone,

M20 Triffid Nebulea.

Early hours of 11.06.23.

15 x 300 seconds

ZWO 533MC Pro.

UV/IR filter.

200mm f/4 GSO Newtonian.

A few issues during the imaging session but
it proved to give results.

As usual, I am happy with the outcome.

Thanks for looking.

Paul.
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  #2  
Old 11-06-2023, 06:50 PM
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Drac0 (Mark)
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One of my favourite targets, great capture Paul. Great to have a couple of consecutive clear nights down here & may get another around the new moon.

Cheers,
Mark
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Old 11-06-2023, 08:57 PM
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xelasnave
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Great Result Paul I like the colour and it is nice and sharp which I like.
Well done.
alex
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  #4  
Old 11-06-2023, 09:00 PM
carlstronomy (Carl)
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Well done Paul, nice image.
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  #5  
Old 11-06-2023, 10:40 PM
oska (John)
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Nice one Paul, very definitely a favourite. Well done.
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  #6  
Old 12-06-2023, 01:40 AM
Startrek (Martin)
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Hi Paul,
A fine M20 image you should be proud of especially with only an hour or so of data
Well done indeed !!
To control those big halos around the larger stars ( if your want ) try shorter subs ( 90 sec to 120 sec ) using Gain 100 or Gain 101 ( HCG mode ) on the 533MC , that’s where your read noise drops dramatically but still maintains excellent dynamic range at 13 stops. Just remember you have an extremely fast scope with loads of aperture. Cooling at -10C is again more than adequate to mitigate dark current noise. A great camera !!
Gain 101 on my 2600MC has been tremendous for the past year, a game changer in both South coasts Bortle 3 and Sydney’s Bortle 8
2 to 3 hours of 2min subs on M20 is more than adequate under your beautiful dark Bortle 3 skies as this object is quite bright.

Keep them coming
Cheers
Martin
( currently travelling through Scotland , posted from a tiny town called Laggan )
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  #7  
Old 12-06-2023, 01:56 AM
PaulSthcoast (Paul)
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Thanks everyone for your kind comments.

I trully appreciate them.

Martin, thanks for the tips.

Yes, I used unity gain on the 533MC Pro...@101.

Been a few stable nights here, a pleasant change,
and the place is starting to dry out.

Oh...and Im in Bortle 2.....for the record !!

Thanks again.

Safe journey.

Paul.
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