Imaging telescopes or lenses: Takahashi TSA 102
Imaging cameras: Atik ONE 6.0
Mounts: Skywatcher AZ EQ6 GT
Guiding telescopes or lenses: Takahashi TSA 102
Guiding cameras: Atik GP
Software: Topaz Sharpen AI · Pleiades Astrophoto PixInsight 1.8 Ripley · Photoshop · PHD Guiding 2 · Atik Artemis
Filters: Astronomik Ha 6nm · Astronomik LRGB 1,25"
Accessory: Atik OAG
Dates:May 21, 2020 , May 23, 2020 , May 24, 2020 , May 25, 2020
Frames:
Astronomik Ha 6nm: 12x600" -15C bin 1x1
Astronomik B 1.25": 20x180" -15C bin 2x2
Astronomik G 1.25": 20x180" -15C
Astronomik L 1.25": 15x180" -15C bin 1x1
Astronomik L 1.25": 60x600" -15C bin 1x1
Astronomik R 1.25": 20x180" -15C bin 2x2
Integration: 15.8 hours
Darks: ~64
Flats: ~12
Bias: ~101
Avg. Moon age: 8.35 days
Avg. Moon phase: 3.23%
Bortle Dark-Sky Scale: 4.00
Astrometry.net job: 4001416
RA center: 12h 50' 53"
DEC center: +41° 7' 9"
Pixel scale: 1.148 arcsec/pixel
Orientation: 13.522 degrees
Field radius: 0.550 degrees
Resolution: 2700x2147
Locations: Fouras, Fouras, Charente-Maritime, France
Data source: Backyard
I tried for the first time the "trendy" software "Topaz sharpen" for this image ; as many users do so now for their astro images.
The process was only applied on the inner core of the galaxy, and with many precautions (mask, low % of blend with the original… ) and rigorous verification that no virtual detail is created during the process. In fact, it was used more like the "sharpen" tool of PS ; which can surely leads to the same result but with many iterations…
For this image, most of the detail come from classic deconvolution and HDR processing on Pixinsight ; Topaz was only useful to quickly give a "sharpen" aspect to the core of the galaxy.
I think that used in that way, and with such precautions, it can be an interesting tool.
JB
Description: AAPOD² celebration ! (11/28/2020 - https://www.aapod2.com/blog/galaxy-m94).
| AAA : Astronomes et Astrographes Amateurs |
| Takahashi Refractors |
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