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Author Topic: Tadpol galaxie, UGC 10214, Infinity mono  (Read 600 times)

klaus

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Tadpol galaxie, UGC 10214, Infinity mono
« on: November 13, 2018, 09:49:19 PM »
Hello all,
I am Klaus, new to this forum.
20 years ago, my interest in astronomy started and I jumped into the hobby getting myself an 8” Meade LX200 SCT. Over the years a large number of accessories has accumulated and tons of books e.g.” how to observe the Deep Sky”. But after a few years I realized that due to the light pollution, I had only a small number of DSO´s to choose from. All these years, I haven't been able to observe a galaxy! I was already starting to lose interest in visual observing when astro-video cameras entered the scene.
Since I own my Atik Infinity mono I can view all the faint stuff mentioned in the books from the comfort of my office. I am observing from my backyard outskirts of Hamburg in a suburban (Bortle 5, MPSAS 19.8) zone. It is fascinating to watch on the monitor how an image of a DSO that is millions of light years away gradually emerges. Most of the time I take 30 light frames of 30 seconds maximum. Before pointing the telescope to another DSO, I save the stack as fits-image for later processing and documentation.
What is your workflow to process stacked b/w images to get most out of it?
Meade LX 200 EMC 8" , tracking mount bild in
Meade Reducer 0.63
Atik Infinity Mono
Bortle Class 5
MPSAS 19.6

bwa

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Re: Tadpol galaxie, UGC 10214, Infinity mono
« Reply #1 on: November 19, 2018, 02:12:03 AM »
Why does your image have 'wavelets' in it, i.e.: they look like standing waves of some sort?

As for processing, I use a combination of PixInsight and Lightroom.

bwa

klaus

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Re: Tadpol galaxie, UGC 10214, Infinity mono
« Reply #2 on: November 19, 2018, 11:02:27 PM »
Quote
Why does your image have 'wavelets' in it, i.e.: they look like standing waves of some sort?

Hi bwa
,
thanks a lot for your answer .The `wavelets` are due to the intensive use of AstroFlat Pro and/or Astronomy Tools to bring out the tidal tail of Arp 188. (You need a pretty dark sky and an aperture >> 20" to glimpse the tidal tail visually !!)
I am not trying to make the pretty pictures like you would get with a great astrophotography rig.The tadpole galaxy is 420 millions!! from earth, apparent v mag is 14.4 . I would like to know where my limits are in terms of my location and equipment.
Processing is in FitsLiberator3 (ArcSinh(ArcSinh(x)) stretch with respect to peaklevel is 3times StdDev plus mean/median.

Greetings and clear sky

Klaus

 
Meade LX 200 EMC 8" , tracking mount bild in
Meade Reducer 0.63
Atik Infinity Mono
Bortle Class 5
MPSAS 19.6

Sirius19

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Re: Tadpol galaxie, UGC 10214, Infinity mono
« Reply #3 on: February 05, 2019, 03:58:08 PM »
Hi Klaus,
Have you tried StarTools software to develop and process your images?
I have attached different infinity photos processed with StarTools.
I started astronomy one year ago and discovered this easy to use software last July. My images started to look a little better.
I have to learn a lot more but this software got me started.

Clear skies,
Keep looking up!

Sirius19

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Re: Tadpol galaxie, UGC 10214, Infinity mono
« Reply #4 on: February 05, 2019, 04:03:43 PM »
Klaus,
Last post was mine. I should mentioned I live in a city with light pollution Bortle = 8.0, much worst than where you live!
Cheers,
Keep looking up!

klaus

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Re: Tadpol galaxie, UGC 10214, Infinity mono
« Reply #5 on: February 11, 2019, 06:38:50 PM »
Hi Sirius19,

thanks for your input and comment.

I played around with a trial version of StarTools for some days. I think it is not the right software  for me, because I am not dealing with colors (b/w only). I found that a non-linear stretch (ArcSinH !)and tweaking the individual parameters works best for me. Finished with curves and levels in CS2,  NeatImage or Astronomy Tools.
What is your workflow?
I attached a photo from M97. It is pretty faint, so I did my best to pull out the outer shell (s.o)

Greetings

Klaus
Meade LX 200 EMC 8" , tracking mount bild in
Meade Reducer 0.63
Atik Infinity Mono
Bortle Class 5
MPSAS 19.6

Sirius19

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Re: Tadpol galaxie, UGC 10214, Infinity mono
« Reply #6 on: February 11, 2019, 07:14:35 PM »
Hi Klaus,
I took your jpg file and opened the file in StarTools and processed it for 10 minutes.
This is what I got.

Inside of the Owl nebula, I can now see three stars. Not sure if you had these details.

This is what I did:
Open JPG
reverse stretch to get linear data ( use your fits file instead of doing this step)
Wipe using defaults, just click Do
Use develop at 98% and 0.65 gamma
Use life, click Isolate and keep results (use defaults)
Use contrast, use defaults
Use track, all defaults
Save image after
If you like what you see, talk to Ivo at StarTools. It was worth the money for me.
Look at the training video.
Cheers
Keep looking up!

Sirius19

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Re: Tadpol galaxie, UGC 10214, Infinity mono
« Reply #7 on: February 11, 2019, 07:22:55 PM »
Oh Klauss,
one thing I did, after opening the file, was to crop the image, you had a lot of noise on the left side of your image from stacking.
That noise is very bad and will alter the results during  processing. You also had a fair amount of vignetting.
Vignetting is like a circle from your optical train, ah you know that.

I hope it was ok for me to borrow your data set. Promise I won't keep your file and delte it right away.
I wanted to show you how quickly someone who has a little bit of experience with that software would process your image.
The fact that you have monochrome data is great, you possibly have more acquisition data.
Make sure you exploit every bits of that data.

Life is a learning journey!

Good day from Canada!
Keep looking up!

klaus

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Re: Tadpol galaxie, UGC 10214, Infinity mono
« Reply #8 on: February 16, 2019, 05:27:29 PM »
Hello, Sirius 19,

of course I have nothing against you editing my data from M97 with StarTools. Please note that it is an 8bit jpeg image, which was already edited.
Your version is too heavily edited for my taste (dark halos around the stars) ...
That's why I developed some fits data, also from other recordings, with StarTools in the last days. At second glance the software has a lot of potential and I start to like it. I bought a license, because without saving a comparison of the different workflows is not possible. Thank you for your advice ! :) ;)

What kind of equipment do you use and how do you use the Infinity OSC (number of shots, length of shot)?

By the way,
my English is not perfect because it is not my mother tongue.


Have a nice weekend and greetings from Germany


Klaus



Meade LX 200 EMC 8" , tracking mount bild in
Meade Reducer 0.63
Atik Infinity Mono
Bortle Class 5
MPSAS 19.6

Sirius19

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Re: Tadpol galaxie, UGC 10214, Infinity mono
« Reply #9 on: February 16, 2019, 07:00:20 PM »
Hi Klaus,
Don't worry, your english is perfect.
Same for me english is my second language.
You are correct to say, i over processed your image.
 I used the function star repair and it created a halo.
Glad to see you acquired the software.

I will share with you that i have been using it for the past 7 months and am still learning the functions.
My workflow always start like:
1- open the image (in linear mode)
2- crop image border if noise present
3- wipe using default
4- develop or autodevelop
5- use color module even if b&w
6-create star mask and invert
7- use isolate in life module
8- use deconvolve
9- adjust contrast and sharpen
10- stop tracking
11-save
Good luck Klaus.
I use a Rasa with atik infinity and more recently i purchased the osc 460 ex.

Because i use a rasa, my exposure time is 9 times faster than a scope at f/6.3.
Usually use 30x35seconds.

Cheers.
Richard






Keep looking up!

punsikorn

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Re: Tadpol galaxie, UGC 10214, Infinity mono
« Reply #10 on: February 19, 2019, 10:53:40 AM »
Why does your image have 'wavelets' in it, i.e.: they look like standing waves of some sort?
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