What if Earth was the size of the Milky Way?

Larger Scales Our own Milky Way galaxy, which is home to hundreds of billions of stars is estimated to be about 125,000 lightyears in diameter (and the latest research suggests it may be much larger). If Earth was the size of a grain of sand, the Milky Way would still be unimaginably huge, around 46,375,000km wide.

How many suns fit in Milky Way?

1.5 trillion suns
The Milky Way has a mass of 1.5 trillion suns.

How big is Earth vs universe?

The comoving distance from Earth to the edge of the observable universe is about 14.26 gigaparsecs (46.5 billion light-years or 4.40×1026 m) in any direction. The observable universe is thus a sphere with a diameter of about 28.5 gigaparsecs (93 billion light-years or 8.8×1026 m).

Is Earth bigger than the Galaxy?

Answer: Assuming a diameter for the Milky Way galaxy of about 15 kpc, which is about 4.6×10^(17) km, and a diameter for the Earth of about 12756 km, the ratio of the diameter of the Milky Way galaxy to that of the Earth is about 3.6×10^(13).

How many galaxies are they?

The Hubble Deep Field, an extremely long exposure of a relatively empty part of the sky, provided evidence that there are about 125 billion (1.25×1011) galaxies in the observable universe.

How far in space have we gone?

The record for the farthest distance that humans have traveled goes to the all-American crew of famous Apollo 13 who were 400,171 kilometers (248,655 miles) away from Earth on April 14, 1970. This record has stood untouched for over 50 years!

How many planets are there in the Milky Way?

They also think that each star has at least one planet, which means there are likely to be hundreds of billions of planets in the Milky Way – billions of which are believed to be the size and mass of the Earth. As noted, much of the Milky Way’s arms is made up of dust and gas.

How far away is the Milky Way from the Earth?

The Solar System (and Earth) is located about 25,000 light-years to the galactic center and 25,000 light-years away from the rim. So basically, if you were to think of the Milky Way as a big…

How many people can’t see the Milky Way from home?

Maps of artificial night sky brightness show that more than one-third of Earth’s population cannot see the Milky Way from their homes due to light pollution. As viewed from Earth, the visible region of the Milky Way’s galactic plane occupies an area of the sky that includes 30 constellations.

What is the total mass of the Stars in the Milky Way?

The total mass of all the stars in the Milky Way is estimated to be between 4.6 × 10 10 M☉ and 6.43 × 10 10 M☉. In addition to the stars, there is also interstellar gas, comprising 90\% hydrogen and 10\% helium by mass, with two thirds of the hydrogen found in the atomic form and the remaining one-third as molecular hydrogen.