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  Calculate a scale model of the Solar System  
 

  • Fill in the diameter of the Sun you want your model to be scaled by. You can fill in either the red bordered inches box or the green bordered millimeters box. Important: Only fill in one box. If both are filled in you will get a dialog box asking you to clear one of the boxes. Use the Clear button to clear the entire form.
  • Click on the "Calculate" button.
  • Notice that the distances and sizes of the planets will automatically fill in. I've also provided some other interesting scale comparisons at the bottom of the chart.
  • You can click on the names of the planets and satellites to go that SkyScope page.

Body Body
Diam
(km)
Body
Diam
(in)
Body
Diam
(mm)
Orbit
radius
(km)
Scaled orbit
radius
(ft & in)
Scaled
orbit
radius
(meters)

Sun 1391900

Mercury 4866 57950000 ft in m
Venus 12106 108110000 ft in m
Earth 12742 149570000 ft in m
Mars 6760 227840000 ft in m
Jupiter 139516 778140000 ft in m
Saturn 116438 1427000000 ft in m
Uranus 46940 2870300000 ft in m
Neptune 45432 4499900000 ft in m
Pluto 2274 5913000000 ft in m

Other Interesting Distances and Speeds
Quantity Real
Quantity
Scaled
Quantity
(English)
Scaled
Quantity
(Metric)

Speed of
light
299792 km/sec in/sec mm/sec
Light
year
9.46051E+12 km mi km

Distances to Stars and Galaxies
To Alpha Centauri 4.03964E+13 km mi km
To Sirius 8.17388E+13 km mi km
To Deneb 1.32636E+16 km mi km
To Galactic
center
2.62151E+17 km mi km

Sizes of Stars
Hottest star
(Type 05)
12527100 km ft m
Coolest star
(Type M5)
222704 km in cm
Red giant
(Betelgeuse)
521962500 km ft m
White dwarf
(Sirius B)
13919 km in mm
Neutron star 20 km in mm

The above is only the sizes and distances to the planets. If you'd like to see the satellites of the planets as well, click here for a much more extensive page.


We would like to Thank Ron and the Exploratorium for allowing us to use this fantastic script.

© 1997; Ron Hipschman, Exploratorium

 
     
     
     
     
     
     
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