M 83 - Barred Spiral Galaxy in Hydra

M 83 (NGC 5236) is also known as the Southern Pinwheel Galaxy due to its similarity to M 101. It was discovered by Nicolas Luis de Lacaille in 1752. Charles Messier added it to his catalog in March of 1781.

M 83 lies approximately 15 million light years away in the constallation of Hydra, the sea serpent. It is one of the closest and largest barred spiral galaxy. It is actually 40 thousand light years in diameter, less than one-half the diameter of our Milky Way.

Hubble images identified over 300 supernova remnants within it.

 

Telescope: AT- RC8 @ f/8
Camera: Modified Canon 650D; ISO 1600
Mount: Orion Atlas
Guiding: QHY-5L-II M on 300mm FL lens
Exposures:

20 @ 5 min.

Processing:

Images were focused using camera's live view with a Bahtinov mask. The subframes were captured, aligned, and combined with ImagesPlus. The composite image was adjusted in Photoshop. Topaz Detail and DeNoise were applied.

Notes:

Shot from my yard in southeastern Minnesota on 5/11-12/2020.

   
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