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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