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Author Topic: NGC7635 image for C & C  (Read 602 times)

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Offline chris.bailey

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Re: NGC7635 image for C & C
« Reply #30 on: 12:19:05, 09 February, 2018 »
Annie

Analysing the stack the eccentricity does increase in the areas where the multiple stars happen and bizarrely the field flatness is worst in the middle rather than towards the edge. Your 106 is a Petzval design and the flatness does change depending on focus, I see it on my 85 but I tend to loose flatness in the corners as focus wanders. It COULD just be done to focus wandering but I'm not convinced.

I really am impressed with Astro Pixel Processor, getting a hold of the trial and just loading in the light frames and running it all at default values would be interesting.

Chris
LX200|ZS70|FSQ85|FLT110|Altair DF250RC|EQ6 Pro(Rowan Belt Mod)|ParamountMX
ATIK383L+/EFW2/OAG|Lodestar|Baader 36mm LRGBHaSIIOIII
Starlight Express SXVRH16/ONAG/FW|Lodestar X2|Baader 2" Filters
Starlight Express SXVRH814/ONAG/FW|LodestarX2|Baader 2" Filters
Lunt LS60PTBF1200|DMK41|Quark Chromo
Samyang 135mm f1.8

Offline chris.bailey

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Re: NGC7635 image for C & C
« Reply #31 on: 12:20:54, 09 February, 2018 »

Am happy to have a go at uploading the raw subs - it would be re-assuring to find out the cause.


I think that would be a good idea even if one at a time. I can run them through PI and APP and see what happens then. PI in particular has tools that will report on stars that are in positions away from the mean so that would be the first port of call.

Chris
LX200|ZS70|FSQ85|FLT110|Altair DF250RC|EQ6 Pro(Rowan Belt Mod)|ParamountMX
ATIK383L+/EFW2/OAG|Lodestar|Baader 36mm LRGBHaSIIOIII
Starlight Express SXVRH16/ONAG/FW|Lodestar X2|Baader 2" Filters
Starlight Express SXVRH814/ONAG/FW|LodestarX2|Baader 2" Filters
Lunt LS60PTBF1200|DMK41|Quark Chromo
Samyang 135mm f1.8

Offline Carole

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Re: NGC7635 image for C & C
« Reply #32 on: 12:31:55, 09 February, 2018 »
Chris has been busy while I have been busy stacking, processing and analysing your images Annie. 

I will leave it to Chris now as I don't have the tools that he has to hand to work out what is going on.  Hope you get to the bottom of it and will pop back in to the post to see if the cause has been found.

Hope the processing steps I anotated when I processed your image will have helped with your processing.

Carole
Mount: NEQ6 (on pier), HEQ5 (for astrocamps),  Telescopes: SW ED120 Pro and SW Evostar ED80 pro, WO ZS71 APO, Cameras: Modified Canon EOS 450D, Atik 460EX, Atik314, DMK21, DBK, Dual rig options. Observatory: SkyPOD & PZT
https://sites.google.com/site/caroleastroimaging/home

Online Annie

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Re: NGC7635 image for C & C
« Reply #33 on: 12:46:27, 09 February, 2018 »
Yes Carole , Chris has been busy! 

I appreciate the processing notes and am sure they will be helpful.  If I don't see you 'popping in' I'll let you know the outcome.

Many thanks
Annie
Pulsar Observatory; NEQ6/EQ6 wedge; HEQ5 Pro; TS Star 71 Astrograph; Takahashi FSQ 106ed; Skymax 150 Pro; Nikon D600; Canon 550D modified; Canon 5D Mk11; ZWO ASI120 MM-S; Lacerta MGEN stand alone guider.

Online Annie

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Re: NGC7635 image for C & C
« Reply #34 on: 12:49:29, 09 February, 2018 »
Chris - I'll start uploading - don't hold your breath!! And also download the trial version of astropp - don't hold your breath with this either - am certain to take a while to get to grips with it, how long's the trial version last!!!

Annie
Pulsar Observatory; NEQ6/EQ6 wedge; HEQ5 Pro; TS Star 71 Astrograph; Takahashi FSQ 106ed; Skymax 150 Pro; Nikon D600; Canon 550D modified; Canon 5D Mk11; ZWO ASI120 MM-S; Lacerta MGEN stand alone guider.

Offline chris.bailey

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Re: NGC7635 image for C & C
« Reply #35 on: 13:59:49, 09 February, 2018 »
Annie

Its a 30 day trial but the author Mabula is pretty friendly to extend that if you ask nicely!

If I get five minutes I'll post some screen shots of how to load everything up and the settings I have used. It really is pretty simple once you get used to it and you can ignore most of the mumbo jumbo.

Chris
LX200|ZS70|FSQ85|FLT110|Altair DF250RC|EQ6 Pro(Rowan Belt Mod)|ParamountMX
ATIK383L+/EFW2/OAG|Lodestar|Baader 36mm LRGBHaSIIOIII
Starlight Express SXVRH16/ONAG/FW|Lodestar X2|Baader 2" Filters
Starlight Express SXVRH814/ONAG/FW|LodestarX2|Baader 2" Filters
Lunt LS60PTBF1200|DMK41|Quark Chromo
Samyang 135mm f1.8

Online Annie

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Re: NGC7635 image for C & C
« Reply #36 on: 15:57:01, 09 February, 2018 »
Cheers Chris!

Annie
Pulsar Observatory; NEQ6/EQ6 wedge; HEQ5 Pro; TS Star 71 Astrograph; Takahashi FSQ 106ed; Skymax 150 Pro; Nikon D600; Canon 550D modified; Canon 5D Mk11; ZWO ASI120 MM-S; Lacerta MGEN stand alone guider.

Online Annie

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Re: NGC7635 image for C & C
« Reply #37 on: 09:06:34, 11 February, 2018 »
It's proving impossible to upload to anything to Dropbox given my broadband download/upload speeds are so slow so have given up!  Have since imaged the Horsehead nebula with the same kit and stacked with darks/flats/bias and as everything looks fine I'll consider what happened with the Bubble nebula as an anomoly and worry if it happens again!  I am however going to download a trial version of Astropp and also have a look at Astroart.

Thanks for all the help, I've learnt a lot.

Annie
Pulsar Observatory; NEQ6/EQ6 wedge; HEQ5 Pro; TS Star 71 Astrograph; Takahashi FSQ 106ed; Skymax 150 Pro; Nikon D600; Canon 550D modified; Canon 5D Mk11; ZWO ASI120 MM-S; Lacerta MGEN stand alone guider.

 

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