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 Post Posted: Wed Apr 13, 2016 8:18 am 
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Joined: Wed Jan 13, 2016 10:15 am
Posts: 29
Dear all,
again under the polluted sky of city of Turin with C9.25 and ASI174MM uncooled!
This time I tried to solve the core of M13 with brief expositions of 3seconds and some detail on the nebula in the Lyra with 2.5seconds of exp.
No filters.
Total exposition for both 20min with gain at 400 and not guided:

M57 => 480*2.5sec + dark + bias +flat

M13 => 400*3sec + dark + bias no flat

With M13 I had some problem with "Flat"...pity!

Any suggestions, comments or criticism is welcome.

Regards,
Pasquale


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 Post Posted: Wed Apr 13, 2016 2:47 pm 
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Joined: Wed Oct 21, 2015 3:29 pm
Posts: 208
Very nice lucky imaging results.

I know guiding is hard at F10, but if your mount can handle it, I think you can get more detail even with LP.


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 Post Posted: Thu Apr 14, 2016 10:12 am 
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firstC8 wrote:
Very nice lucky imaging results.

I know guiding is hard at F10, but if your mount can handle it, I think you can get more detail even with LP.


Thank you FirstC8,
next time I would like with a shorter exp but it will be very hard because the gain was already to the max (400)!!

About the "guide", I never tryed before. Maybe if the weather will be good tomorrow I can try with C9.25 on Vixen NEXSXD + ASI120MC + Astroart 6. I have a demo version of AA6 and I'm evaluating to buy it.

Regards,
Pasquale


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 Post Posted: Thu May 05, 2016 5:54 am 
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Joined: Thu May 05, 2016 5:48 am
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pask wrote:
Dear all,
again under the polluted sky of city of Turin with C9.25 and ASI174MM uncooled!
This time I tried to solve the core of M13 with brief expositions of 3seconds and some detail on the nebula in the Lyra with 2.5seconds of exp.
No filters.
Total exposition for both 20min with gain at 400 and not guided:

M57 => 480*2.5sec + dark + bias +flat

M13 => 400*3sec + dark + bias no flat

With M13 I had some problem with "Flat"...pity!

Any suggestions, comments or criticism is welcome.

Regards,
Pasquale

Great images Pasquale


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 Post Posted: Fri May 06, 2016 12:13 pm 
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Joined: Wed Jan 13, 2016 10:15 am
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Nick647 wrote:
pask wrote:
Dear all,
again under the polluted sky of city of Turin with C9.25 and ASI174MM uncooled!
This time I tried to solve the core of M13 with brief expositions of 3seconds and some detail on the nebula in the Lyra with 2.5seconds of exp.
No filters.
Total exposition for both 20min with gain at 400 and not guided:

M57 => 480*2.5sec + dark + bias +flat

M13 => 400*3sec + dark + bias no flat

With M13 I had some problem with "Flat"...pity!

Any suggestions, comments or criticism is welcome.

Regards,
Pasquale

Great images Pasquale


Thank you Nick,
These days I tried to use a shorter time with a very bad seeing but I still have to process the images.

Pasquale


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 Post Posted: Fri May 06, 2016 1:00 pm 
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Hi Pasquale
I have a cpc 925 and zwo 174 mc and would like
Some hints and tips on how to do deep sky imaging


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 Post Posted: Mon May 09, 2016 7:53 am 
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Nick647 wrote:
Hi Pasquale
I have a cpc 925 and zwo 174 mc and would like
Some hints and tips on how to do deep sky imaging


Hi Nick,
when you want.
I'm not sure if I will be able to answer but you tell me ;)

Pasquale


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 Post Posted: Mon May 09, 2016 7:57 pm 
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pask wrote:
Nick647 wrote:
Hi Pasquale
I have a cpc 925 and zwo 174 mc and would like
Some hints and tips on how to do deep sky imaging


Hi Nick,
when you want.
I'm not sure if I will be able to answer but you tell me ;)

Pasquale


Hi Pasquale
I just wanted to know some settings to use
on some targets

Nick


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 Post Posted: Tue May 17, 2016 8:31 am 
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Joined: Wed Jan 13, 2016 10:15 am
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Nick647 wrote:
pask wrote:
Nick647 wrote:
Hi Pasquale
I have a cpc 925 and zwo 174 mc and would like
Some hints and tips on how to do deep sky imaging


Hi Nick,
when you want.
I'm not sure if I will be able to answer but you tell me ;)

Pasquale


Hi Pasquale
I just wanted to know some settings to use
on some targets

Nick


Hi NIck,
Sorry for the delayed response but I was traveling for work.
In anycase, what I can suggest is to put the gain at maximum. Then, your camera is a 174MC, in this case you can't use some filter like red or H-alpha so be carefull to the light pollution and the refraction (point a target over 40° altitude).
An other important think is the exposition. Looking the histogram you have to put the background max at 10-15% of the maximum.
Take many photos, is the only way to reduce the noise.
Remember, maybe in the raw image you can't see the DSo but after some stretch yuo will see it.
Our C9.25 is an F/10 so you have to choose very bright subjects.
Good luck ;)
Pasquale


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 Post Posted: Wed Jun 28, 2017 1:38 pm 
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Joined: Mon Nov 07, 2016 6:14 pm
Posts: 35
Very nice , nailed m57. I tried again last night , without guiding and no calibration froms using live stacking w/ sharpcap3.0 and got some data nevertheless. Maybe I'll get it going one of these nights. M13 is stunning in lp skies "KUDOS"


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