The Cartwheel Galaxy is a lenticular galaxy and ring galaxy about 500 million light-years away in the constellation Sculptor. It is an estimated 150,000 light-years diameter, and has a mass of about 2.9–4.8 × 10⁹ solar masses; it rotates at 217 km/s. It was discovered by Fritz Zwicky in 1941.

Distance to Earth: 489.2 million light years

Radius: 65,000 light years

Apparent mass: ~3.85 billion M☉

Apparent size (V): 1′.1 × 0′.9

Coordinates: RA 0h 37m 41s | Dec -33° 42′ 59″

Did you know: When the nearby galaxy passed through the Cartwheel Galaxy, the force of the collision caused a powerful shock wave through the galaxy, like a rock being tossed into a sandbed.