Author Topic: Crescent Moon Mosaic  (Read 3719 times)

Offline alejandromeira

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Crescent Moon Mosaic
« on: 2012 February 29 11:13:12 »
Curiously MONday Frebuary 27 I've taked 34 moon videos for try to make a mosaic. We can do this and this is the image that I have obtained.
Size: 4432x7632 pixels. click over the image for get it full size.


Offline Nocturnal

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Re: Crescent Moon Mosaic
« Reply #1 on: 2012 February 29 11:17:33 »
Holy cow! That's excellent work! How did you stitch these images together?
Best,

    Sander
---
Edge HD 1100
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Offline georg.viehoever

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Re: Crescent Moon Mosaic
« Reply #2 on: 2012 February 29 11:18:47 »
Impressive! Can you tell us more details about the processing steps? Most images here are deep sky, so I expect there are some tweaks to it that are special to this kind of images.
Georg
Georg (6 inch Newton, unmodified Canon EOS40D+80D, unguided EQ5 mount)

Offline alejandromeira

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Re: Crescent Moon Mosaic
« Reply #3 on: 2012 February 29 13:02:53 »
Ok, first thanks for your comments, second, sorry for my little english.

I've joined the images with the GIMP. Images have intersection zones, the same zone (not entire) in two or more images. I've beginning at a corner, and then search another image win an intersetion zone with the previous image. Then I move the seccond image over the first until the images are in the same position (zoom of 400% is usual). I've croped corners and bad straight lines at the limit of images. I've used mask layers for make the transition from one layer to another. In this way I have arrived to the moon's end. It was an hard and delicate work.

Ok, more details. Telescope was c8 prime focus with an Celestron star diagonal-1 prism. A little more, then, that F10. Camera is a qhy5. I've taked 34 videos to make sure all the moon was captured. From each video I've obtained one picture for the mosaic with Registax6, not all videos were necessary. Van-Cittert deconvolution was performed with Pixinsight.

Offline Nocturnal

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Re: Crescent Moon Mosaic
« Reply #4 on: 2012 February 29 13:12:03 »
Double impressive! I think I'd rather use a somewhat bigger camera in that case :)
Best,

    Sander
---
Edge HD 1100
QHY-8 for imaging, IMG0H mono for guiding, video cameras for occulations
ASI224, QHY5L-IIc
HyperStar3
WO-M110ED+FR-III/TRF-2008
Takahashi EM-400
PIxInsight, DeepSkyStacker, PHD, Nebulosity

Offline Enzo De Bernardini

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Re: Crescent Moon Mosaic
« Reply #5 on: 2012 February 29 15:53:29 »
Excellent!, and splendid image scale.

Greetings,

Enzo.

Offline alejandromeira

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Re: Crescent Moon Mosaic
« Reply #6 on: 2012 March 01 07:11:21 »
Thanks Enzo. : -)

Nocturnal, I've used DLSR for lunar images but small deatails (in seconds of arc or even less) are better when one capture video and promediate and stack the images. Then I only make lunar images from vidos taked with the qhy5 camera. : -)