Death Moon or incomplete mozaic 2021-05-21 (xavier)

Contains: Solar system body or event

Death Moon or incomplete mozaic 2021-05-21

This is my second mosaic with my new mono camera QHY5 III 290 MM. With its small pixel size 2.9 µm compared to 6.5 of my mono IDS. It enable me to have a good resolution without using any barlow.

I haven't published the first one because there were some missing parts giving an unaesthetic result. Lesson learned, I tried to have more shared borders between the movies. Also in order to have a better sharpness, I used (as I used to do with the IDS) a 23A filter. To avoid issue with disk space (I have 50 GB only), I decided to use bin x2 leading to 4 time smaller files and 4 times faster acquisition. Then at pre-processing stage, I use a Resample x2 by AS3! to get almost the original resolution with a little loss in quality.

But as there is always something to learned, I started too late and because of a nice tree in the garden and the house, I was not able to finish the mosaic containg already 100 tiles for this Moon illuminated at 87% that was at an altitude of about 30º. So I decided to have fun an complete somehow the dark side of the Moon. A new version will come soon in the full resolution but it requires some additional work to fixed some over exposed part. For that I shoot some part with 2 different gains: the one I used everywhere and a smaller one.

The setup is my usual one for Moon: EQ6R pro with SW Maksutov 180/2700, 23A and QHY5 III 290, FireCapture.

For the processing: AS3! resample x2, Astrosurface and GIMP.

In Astrosurface:

1. Deconvolution Richardson-Lucy psf_12px-noise_1.0px-x50.ad2

2. Wiener: parameters_6px_0.5_noise_fact_60.ad1

3. crop

4. ICE

5. HDR intesity 10

6. Local constrast : strenght 2

7. Equalize histogram : strenght 3

Enjoy

Original
Final
B

Moon

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Death Moon or incomplete mozaic 2021-05-21

Death Moon or incomplete mozaic 2021-05-21

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Death Moon or incomplete mozaic 2021-05-21

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