６ Address of the Earth in the Universe #universe #earth

６　Address of the Earth in the Universe　#universe #earth

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 （The cosmic microwave background）



・ESA > Our Activities > Space Science > Planck
https://www.esa.int/Our_Activities/Space_Science/Planck/From_an_almost_perfect_Universe_to_the_best_of_both_worlds

※ 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



※ Reference：Wikipedia “Solar System”

【Change log】
20180910　 Organizing figures.