Author Topic: IC405 & IC410 Mosaic  (Read 266 times)

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Carole

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IC405 & IC410 Mosaic
« on: Dec 31, 2019, 18:09:44 »
This is my first 2 pane Mosaic.  Captured in HaRGB.

This needs more data but chances are unlikely, so I have posted it for now.

The Flaming star panel had a bit more data than the Tadpoles section as it clouded over before I had finished.

Flaming star:
12 x Ha (2 hours)
RGB 15 x 150secs binned
Total 2hours 37.5mins

Tadpoles:
9 x 600secs Ha (1.5 hours)
RGB 14 x 150secs binned
Total 2hours 5mins

Grand total for the Mosaic = 4 hours 43.5 mins

Atik460EX Baader 3nm Ha filter Baader RGB filters
WOZS71 and HEQ5
Mapped HaRHaGB

Combining the panels was a bit of a challenge, as I don't have a licence for APP and prefer to use software I am familiar with if possible.  Despite doing both panels on the same evening without moving anything except the mount I was surprised to find a small amount of rotation when i tried to stitch the Ha panels together, and Registar did not want to register the panes even though there was a reasonable overlap, so had to rotate the Ha in Photoshop.  I was then able to use this merged mosaic to register the RGB files. 


Got a tip about using ICE for stitching Mosaic's together and so did a general reprocess, I think this version is better and certainly a lot easier than doing it manually.  So image replaced.

« Last Edit: Jan 01, 2020, 12:53:10 by Carole »

Carole

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Re: IC405 & IC410 Mosaic
« Reply #1 on: Mar 01, 2020, 11:49:32 »
Was wondering why I didn't get any feedback on this image, looks like I forgot to post the actual image!!! 

Duh!


Apophis

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Re: IC405 & IC410 Mosaic
« Reply #2 on: Mar 01, 2020, 13:36:25 »
Nice one , ive always wondered how you do a mosaic,
Roger

Carole

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Re: IC405 & IC410 Mosaic
« Reply #3 on: Mar 01, 2020, 14:46:43 »
I am sure there are more sophisticated ways of doing one, but I tend to do things the old fashioned way.

First of all I studied the FOV of both targets in Imaging toolbox and established that it would all fit in two images and where the overlap would be and where I had to place the images.  I also checked this with looping before I started. 

My sensor is placed orthogonally, so I merely positioned the Flaming star in the corner so all i had to do was manually move in one axis to the second target with an overlap.  The first process I did manually in Photoshop and had a bit of difficulty registering the two images as there seemed to be a little rotation doing it on separate nights (not sure how that happened).  Also getting the colour to match of each half was a struggle.

Then some-one told me about ICE which I downloaded and all I had to do was feed in the two processed images and bobs your uncle, even fine tuned matched the colours too.  Clever software and it's free.

I think APP has a number of ways to make mosaic's simple, but I didn't want to have to pay for and learn a completely new software for what could be just one image.

Carole

Fay

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Re: IC405 & IC410 Mosaic
« Reply #4 on: Mar 12, 2020, 18:07:04 »
Thats come out great Carole.........

Fay
It is healthier to be mutton dressed as lamb, than mutton dressed as mutton!

Carole

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Re: IC405 & IC410 Mosaic
« Reply #5 on: Mar 12, 2020, 18:52:28 »
Thanks Fay,

Carole

NoelC

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Re: IC405 & IC410 Mosaic
« Reply #6 on: Mar 16, 2020, 10:17:25 »
Very pretty Carole
A large area of sky there.

Noel
Synta mount, a bunch of telescopes and a shed (on wheels).

Carole

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Re: IC405 & IC410 Mosaic
« Reply #7 on: Mar 16, 2020, 12:00:00 »
Thanks Noel.

Carole