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How Big Are Things?
Home     Welcome
small Real
world

big     solar system between galaxy
nano
micro
meter
kilo
Mega
Giga
Tera
Peta
Exa
  Gigameter's Room - looking at a sheet of graph paper
  Gm = 109 m
look at the entire room
 
galaxy21
 20
19
local stars18
 17
16
between15
 14
13
E's orbit12
 11
10
sun9
 8
7
texas6
 5
4
hood3
 2
1
you0
 -1
-2
salt grain-3
 -4
-5
bacteria-6
 -7
-8
atom-9
109 m    1 Gm
1010 m    10 Gm
1011 m    100 Gm

    Sun  
  Sirius A

light-minutes (lt·min)
0
1
2
3
4
5


unscaled version - so you can read the annotations [orbit circularity is bogus]
What is the distance from Earth to the sun? 150 Gm (150 billion meters)

Mercury's orbit

Thumbnail of Megafloor.

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