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Thor's Helmet Nebula - NGC 2359 | by wissam Ayoub
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Thor's Helmet Nebula - NGC 2359

Thor's Helmet Nebula - NGC 2359.


Distance to Earth about 12,000 light-years.

Diameter is about 30 light-years.

The central star of Thor’s Helmet is believed to be about 280,000 times brighter than our Sun, 16 times more massive and around 1.5 times larger. It has a surface temperature of 112,000 K and is about 20 million years old!


Imaging telescope: Explore Scientific 127mm ED TRIPLET APO.

Imaging cameras: ZWO ASI1600MM Pro-Cool.

Mount: iOptron CEM60.

Guiding camera: ZWO ASI290MM mini.

Focal reducer: Explore Scientific 0.7 Reducer/Flattener.

Software: PixInsight 1.8.8 Ripley, Adobe Photoshop 2020.


30X300 sec Ha 12nm, gain 139.

30X300 sec OIII 12nm, gain 139.

Accessory: ZWO EAF Electronic Auto Focuser, ZWO OAG, ZWO 8x 1.25" Filter Wheel (EFW).


Re-process of my data - Jan 2020.


Taken in Abu Dhabi, UAE, Class 4 Bortle sky.

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Uploaded on October 28, 2020