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 Post subject: Direct Hit
PostPosted: Mon Nov 02, 2015 9:11 pm 
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Shooting Hickson 99 last night and suffered this direct hit - right through dead centre of the galaxy cluster.


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 Post subject: Re: Direct Hit
PostPosted: Tue Nov 03, 2015 9:44 am 
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Hmmm wonder if IRIS can sort this one out ?

Bill


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 Post subject: Re: Direct Hit
PostPosted: Tue Nov 03, 2015 3:54 pm 
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You were lucky to get anything of the galaxy cluster at all - this is all I could see from here last night:

Image

It was very foggy! :lol:


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 Post subject: Re: Direct Hit
PostPosted: Tue Nov 03, 2015 9:31 pm 
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Ross,
Was the can in front of the double glazing? That would block the view.
Bill,
Hopefully add a sequence>sigma clipping will remove the aeroplane. Faint aeroplanes seem harder for it to remove than bright ones.


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 Post subject: Re: Direct Hit
PostPosted: Tue Nov 03, 2015 9:47 pm 
:lol: :lol:


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 Post subject: Re: Direct Hit
PostPosted: Wed Nov 04, 2015 9:09 am 
I think that's what you call touché lol


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 Post subject: Re: Direct Hit
PostPosted: Fri Nov 20, 2015 9:15 pm 
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At last got around to stacking the images with the direct hit - there were 10 in all which is usually enough for sigma clipping to work its magic. It did and the aeroplane has vanished.


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 Post subject: Re: Direct Hit
PostPosted: Fri Nov 20, 2015 11:36 pm 
Wow, I count 17 galaxies !!
Any advance on that ??


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 Post subject: Re: Direct Hit
PostPosted: Tue Nov 24, 2015 2:27 pm 
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One point I should have added - if IRIS doesn't remove the aeroplane trails try reducing sigma to 1 and increasing the number of iterations to 2. That usually works.


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 Post subject: Re: Direct Hit
PostPosted: Thu Nov 26, 2015 1:24 pm 
Do you stack your CCD raws in maxim Dave? thats a Maxim screenshot isnt it?


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