Galaxy
A large, face-on spiral galaxy with asymmetric arms shaped by gravitational interactions with several companion galaxies.
| Type | Galaxy |
|---|---|
| Galaxy type | Spiral |
| Distance from Earth | 21,000,000 ly |
| Diameter | 2,384,100,000,000,000,000 km |
| Mass | 2.00 × 10^41 kg |
| Apparent magnitude | 7.9 |
| Redshift | 0.000804 |
| Hemisphere | Northern |
| Discovered | 1781 |
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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