How big is the universe?

The attempt to find an answer in nine steps

A compilation by Manfred Hanglberger:

 

Link to share: https://hanglberger-manfred.de/weltall-ausdehnung-en.htm

 

 

All values are rounded!

 

Distance

Values

Light-time-distance

 

1.    

Earth diameter:

12.700 km

1/23 Light-seconds

 

2.    

Earth to the moon:

384.000 km

1,3 Light-seconds

If you put the earth 30 times side by side, you reach the moon.

3.    

Earth to the sun:

150 Mill. Km

8,3 Light minutes

If you put the distance of the earth to the moon 400 times next to each other, you reach the sun.

Earth-Sun distance = 1 AU (Astronomical unit)

4.    

Sun to Neptune

4,5 Billion km

4,2 Light-hours

If one puts the distance of the earth to the sun 30 times next to each other, one reaches Neptune, the last of the 8 planets of the solar system (= radius of the planetary system)

 

5.    

Sun to the next star

4,24
Light-years

4,24 Light-years

If you set the distance of the Sun to Neptune (= radius of the planetary system) 9000 times next to each other, you will reach the next star = the next "Sun" (Alpha proxima Centauri)

6.    

Diameter of the Milky Way

100.000
Light-years

100.000

Light-years

If you put the distance of the sun to the next star 23.500 times next to each other, you get the diameter of the milky way

7.    

Milky Way to the Andromeda Nebula

(next big Milky Way)

2.500.000
Light-years

2,5 Mill.
Light-years

If you lay our milky way 25 times side by side, you reach the next big milky way, the Andromeda Nebula

 

8.    

Distance from the earth to the edge of space

More detailed >>>

 

46,6 Billion
Light-years

Age of the universe: ca.13,8 billion years.

1 Light year =
9 461 billion km

= ca. 9,5 trillion km

If you put the distance from our Milky Way to the Andromeda Nebula 18.500 times next to each other, you get the distance from the earth to the edge of the universe.

Since the universe expands with more than three times the speed of light: 

13.8 billion years x 3.38 = 46.6 Billion light years (>> Wikipedia)

 

9.

Diameter of the universe

93 Billion
Light-years

 

The distance to the edge of space as radius x 2 = 93 Billion light years (>> Info of the ESA)

In more detail >>> (http://hanglberger-manfred.de/weltall-beginn-ausdehnung.htm )

Update February 2019

Is there still “someone” in this huge space? Are there Aliens? Scientific and theological considerations >>>

>>> Other texts in English

>>> Value experiences of astronauts

 
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