Scientists and astrophotgraphers around the world were captivated by the awe-inspiring spectacle of a recent supernova in the magnificent spiral galaxy, M101, also known as the Pinwheel Galaxy. The brilliant explosion occurred in a distant corner of the galaxy, illuminating the cosmic stage with a dazzling display of celestial fireworks.

This cataclysmic event unleashed an incredible amount of energy, as the massive star met its dramatic end, releasing shockwaves and dispersing heavy elements into the vastness of space. Observations and measurements from various telescopes and instruments have provided invaluable insights into the dynamics and aftermath of this breathtaking supernova, contributing to our ever-expanding knowledge of stellar evolution and the extraordinary forces that shape our universe.

34hr 31min⁣ total exposure time⁣⁣

96x300” Ha

⁣119x300” Oiii⁣

150x60” R

⁣66x60” G

⁣74x60” B⁣

40x Darks⁣360 Flats/Dark Flats⁣06/13-15,06/17-18, 06/21-22, 07/22, 08/03, 08/13/2021⁣Bortle 6⁣/7⁣Calgary, AB⁣⁣Setup#1⁣ - HHOHO 711mm Focal Length⁣william optics GT102⁣william optics Flat68iii⁣antlia filters HO 3nm, 2”⁣antlia filters RGB, 2”⁣sky watcher usa EQ6-R Pro⁣zwo asi ASI2600MM-Pro, unity, -10C⁣zwo asi EAF⁣zwo asi EFW 7x2, 2”⁣zwo asi OAG⁣68M⁣zwo asi ASI290MM-mini⁣⁣zwoasi ASIAir Pro⁣

⁣APP, PI⁣, PS, MLR⁣

Copyright: Andrew Lesser

Image Description and Details :

Located in the constellation Cassiopeia, this magnificent star forming region, surrounded by energized gas and dark dust lanes, is itself located alongside the larger Heart Nebula and is well known for its strong source of radio emissions.⁣
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We are star dust.⁣
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This image was created with data captured across 7 nights from October to November using a 8” Ritchey–Chrétien reflector telescope and a cooled, monochrome camera with both narrowband and broadband filters.⁣
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The Hydrogen Alpha, Oxygen III and Sulphur II emission wavelengths are exceptionally strong in this region and I mapped the colour palette to try and make something truly unique! I belended in RGB stars for good measure. I hope you like it! ⁣
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⁣30hr 25.5min⁣s total exposure time⁣
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120x 300” Sii⁣
105x 300” Ha⁣
117x 300” Oiii⁣
84x 60” R⁣
65x 60” G⁣
82x 60” B⁣
40x Darks⁣
390 Flats/Dark Flats⁣
10/30-31, 11/01-02, 11/05-07/2021⁣
Bortle 6⁣/7⁣
Calgary, AB⁣
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|| Setup ||
1624mm Focal Length⁣
TS Optics RC 8” Carbon Fiber⁣ @ f8 ⁣
SHO 3nm, 2”⁣
RGB, 2”⁣
EQ6-R Pro⁣
ASI2600MM-Pro, unity, -15C⁣
EAF⁣
EFW 7x2, 2”⁣
OAG⁣68M⁣
ASI290MM-mini⁣
ASIAir Pro⁣
⁣APP, PI⁣, PS, MLR⁣
2x binning


Copyright: Andrew Lesser