Thor’s Helmet NGC 2359 in HOO - a photo on Flickriver

            هذه الصورة لسديم خوذة ثور ( اله الرعد و البرق في علم الاساطير) . يبعد عنا هذا السديم ١٥٠٠٠ سنه ضوئيةو يمتد لمسافة ٣٠ سنه ضوئية في كوكبه الكلب الاكبر. يتكون هذا السديم نتيجة اصطدام الرياح النجمية القوية الناتجة من نجم عالي الطاقة ( يبلغ عشر اضعاف كتلة الشمس ) مع الغازات المحيطة ليجعلها تتوهج في وسط الظلام بهذة الالوان الجميلة. This beautiful emission nebula is about 30 light years across and it lies 15,000 light years away from us in Canis major constellation. The nebula is emerged from the strong interstellar winds that produced from high energetic Wolf-Rayet star. This star is 10 times mass of the Sun and 6 to 10 times hotter. Hence, the interstellar winds energise the surrounding complex molecular clouds to glow in the dark. It resembles helmet with wings like Thor’s Helmet. The God of Thunder & Lightening in Mythology. Gear setup: Celestron Edge HD8 w/0.7 reducer, iOptron GEM45, ZWO 2600MM Cooled @ -10C, ZWO EFW 2”x5, Antlia 3nm Ha and Oiii 2” narrowband filters, Celestron OAG, ZWO 174MM. Captured by APT, PHD 2, Sharpcap pro in Ha 37 x 300sec Bin 2x2, Oiii 79 x 300sec Bin 2x2. subs with total exposure of 9.5 hours. Stacked by APP and Processed in PI, PS & Topaz Denoise. Taken from Bortle 9 class sky.
   

Taken on: April 8, 2023

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