Somewhere in the parallel universe
Address of the Earth in the universe：the "local group of supercluster, Virgo galaxies, local galaxies (Milky Way), Orion Arm, Solar system, third planets."
The universe with Milky Way
※ Radius of the observable universe is about 45 billion light-years. ( The theoretical value calculated from redshift.)
Space beyond that area, does not know whether infinite or finite.
※ The number of galaxies is about one trillion.
※ The end of the universe is moving away from Earth at a rate of about 3.5 times the speed of light. (Which appears to be viewed from any galaxy, other galaxies are uniformly distributed, as moving away at a speed proportional to the distance)
Milky Way galaxy
The Disk of the Milky Way
※ The shape of the Milky Way galaxy is the disk about 100,000 light-years in diameter, and 15000 light-years in thickness.
※ In the Milky Way galaxy, there are about 200 billion〜400 billion stars.
The solar system
※ The most inner orbital is the orbit of Mars.
※ Reference：Wikipedia “Solar System”