Wide field of view of the Cassiopean region - from the clear skies of Corsica (Jérémie)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: Extremely wide field

Wide field of view of the Cassiopean region - from the clear skies of Corsica, Jérémie

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Wide field of view of the Cassiopean region - from the clear skies of Corsica

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Wide field of view of the Cassiopean region - from the clear skies of Corsica

One of my lenses I wanted to test with the ASI183MM Pro and some filters (like Ha) was the Samyang 8mm f/3.5.

The result is poor, because I didn't close it enough, by fear of lacking light for faint objects... Therefore, there is a lot of coma on the borders of the image circle, and that's really visible. I won't make this error twice !

On the positive side, we can clearly see lots of the most imaged deep sky objects : Heart and Sould nebulas, Pac Man nebula, Andromeda galaxy and much more !

The trick to make the emissions nebulas more visible was to mix the stacked Ha image on top of the L pass (UV/IR stack), and use that to replace the L layer - in LAB color space - of the image made from R, G and B filters, combined in Siril.

It is not really a 8mm due to my Sony to EOS adapter, that is also teleconverter x1,48 (for flange to sensor distance difference bewteen Sony and Canon), so it is not a fully fish eye image.

Next time I will also find a better foreground.

Anyway, feedback is welcome !

ZWO ASI183/QHY183
Very Wide Field
iOptron Skyguider Pro
AAA : Astronomes et Astrographes Amateurs
Astrophotographes (France)
Milky Way, Nightscapes and Widefields (CMOS)
Astro Landscapes
Samyang
Camera Lens Astrophotography

WIDE FIELD OF VIEW

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Astrometry.net job	4009067
PixInsight job	CDRIV69QJH1IRS3D1ANVLCPIKGQ6OKE0
PixInsight queue size	n/a
PixInsight stage	PLATE_SOLVING_IMAGE

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Wide field of view of the Cassiopean region - from the clear skies of Corsica

Wide field of view of the Cassiopean region - from the clear skies of Corsica

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Wide field of view of the Cassiopean region - from the clear skies of Corsica

Wide field of view of the Cassiopean region - from the clear skies of Corsica

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