Leo Triplet (Carlo Caligiuri)

Celestial hemisphere: Northern · Constellation: Leo (Leo) · Contains: HD98388 · IC 2708 · Leo Triplet · M 65 · M 66 · NGC 3623 · NGC 3627 · NGC 3628

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Leo Triplet

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Leo Triplet

Leo Triplet session is my latest work. I did this session between March and April 2022.
Unfortunately the weather was really bad and sincerely I never seen a rainy period as this, never! Last May was the most rainy month registered since weather monitoring exist.
I can't wait to play with my telescope!

Please come soon African Anticyclone!

When I use the Canon 6D I have some problems with parasite lights. I thought that there were some issues with flat field frames but, I realized, thanks to the big knowledge of some friends, that there is a problem with the Skywatcher 250 Quattro. Some people say that is a problem with secondary spider support and other say that is a problem with focuser...Until now is a real mystery!!!

Off course, the rule of GIGO (Garbage IN = Garbage OUT, Good IN = Good OUT) is always valid and this make more difficult with the post elaborating approach.
I never spent so much time with elaboration of a single image but "fortunately" the weather was bad and I had more "free" time to do it.

I have attached the post calibration image just to show you the starting point of the whole work. As you can see there are some concentric circles that are artifacts due to some kind of parasite lights.

I have just finished my DIY 3D printer and bought 1KG of black plastic filament...I will try to make some accessories to limitate the issue!

Stay tuned!

PS: a special thanks to my dear friend Antonio that helps me with some text corrections! Regarding the AI topic... can AI be a friend also?

Ciao AstroAmici!

Final
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B

Title: Post Calibration Image

Uploaded: ...

OnStep - AstroDIYer
CMOS Imagers
Imagers of Italy
The OSC Club (One Shot Camera)

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Status	Advanced success
Started	...
Astrometry.net job	7885933
PixInsight job	AOJZRQI1I11H40I00CUD4NOQICXSJZXZ
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	11h19m44s.37
RA (top/left)	11h17m47s.75
RA (top/right)	11h18m07s.62
RA (bottom/right)	11h21m39s.80
RA (bottom/left)	11h21m21s.49

Dec (center)	+13°15′21″.4
Dec (top/left)	+13°51′47″.5
Dec (top/right)	+12°35′39″.1
Dec (bottom/right)	+12°38′58″.7
Dec (bottom/left)	+13°54′58″.1

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