ESO 350 – 40 (Cartwheel Galaxy)

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ESO 350 – 40  (The Cartwheel Galaxy)

The Cartwheel galaxy is one of the most dramatic examples of a ring galaxy, it is about 150,000 LY across and at a distance of 500 MLY in Sculptor.

In the distance past one of the smaller close galaxy passed through the Cartwheel causing a powerful shock wave that passed through the galaxy producing a bright blue ring of star formation.

The Cartwheel was probably a normal spiral galaxy before the collision and it shows signs of reforming back into a spiral structure.

Telescope.  16 Inch F 4.5 Newtonian.

Camera.  S Big ST 4000 XCM OSC CCD.

Exposure and Dates.  12 x 900 sec + 14 x 900 sec.   Oct  2013,  Oct  2016.

Location.  (Wiruna)  Ilford N.S.W.