Mars is the fourth planet in the Solar System. Here is a table showing information about the solar system:
Planetary Data | ||||||||||
Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | Pluto | ||
Average Distance from Sun | 0.388 | 0.722 | 1.000 | 1.524 | 5.203 | 9.539 | 19.19 | 30.06 | 39.6 | |
(astronomical units) | ||||||||||
Average Diameter (Earth=1) | 0.382 | 0.949 | 1.000 | 0.529 | 11.21 | 9.46 | 4.01 | 3.88 | 0.18* | |
Mass (Earth=1) | 0.055 | 0.815 | 1.000 | 0.107 | 317.7 | 95.15 | 14.53 | 17.15 | 0.002* | |
Number of Known Satellites | 0 | 0 | 1 | 2 | 16 | 20 | 15 | 8 | 1 |
Since the planets are "floating" in space, they don't really weigh anything
at all, however, they have mass. This is similar to what you think of as
weight so if you look in the table under Mars you will see that it's mass is
0.107, or about on tenth that of the Earth. Your next question is how much
does the Earth weigh isn't it? The Earth's mass is 5.976 x 1024 kilograms so
on tenth of that would be 5.976 x 1023 kilograms, or
597,600,000,000,000,000,000,000 kilograms.
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Excerpted from Compton's Interactive Encyclopedia
Copyright (C) 1993, 1994 Compton's NewMedia, Inc.