Pinwheel Galaxy

Galaxy

A large, face-on spiral galaxy with asymmetric arms shaped by gravitational interactions with several companion galaxies.

Facts

TypeGalaxy
Galaxy typeSpiral
Distance from Earth21,000,000 ly
Diameter2,384,100,000,000,000,000 km
Mass2.00 × 10^41 kg
Apparent magnitude7.9
Redshift0.000804
HemisphereNorthern
Discovered1781

Pinwheel Galaxy in context

At 2,384,100,000,000,000,000 km across, Pinwheel Galaxy is 187,105,634,908,178 times the diameter of Earth.

Its mass is 100,553,041,730 times the mass of the Sun.

The light reaching us from Pinwheel Galaxy tonight left it around 21,000,000 years ago.

Its light arrives redshifted by z = 0.000804, stretched on the way here by the universe's expansion.

It has been on record since 1781.

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