Triple APOD - May 9, 2025: Thor's Helmet (NGC 2359) By Erich Krause Photo d'astronomie amateur All-Star du jour - Click to Enlarge


Triple APOD - May 9, 2025: Thor's Helmet (NGC 2359) By Erich Krause

From Erich:

3.5 hours integration from city of Chestermere

25 x 300s OIII

18 x 300s Ha

Sharpstar 140PH

MESU 200 MKII mount

ZWO 2600MM w 3nm Antlia 

I used the BlurXTerminator combined with some fancy masks to pinpoint and extract the details from the core of the image.

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