| PGC 509 is an example of a small category of galaxies called Ring Galaxies. These galaxy shapes are a result
of galactic collisions where one galaxy passes straight through the middle of a second galaxy. The shockwave created
by the collision sparks a spreading ring of star formation. A slight blueish tint from the star formation
can be seen in the ring structure. The bright knot of material below the ring, with its yellowish tint, is likely the core
of the colliding galaxy. The most famous example of a ring galaxy is
PGC 509 is a faint (M15.5) galaxy in the constellation of Cetus.
Luminance = 120 minutes
Red = 30 minutes binned 2x2
Green = 30 minutes binned 2x2
Blue = 30 minutes binned 2x2
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