__Sidereal Day-__

23 hours, 56 minutes, 4 seconds.

__Sidereal Period-__

1.0 years.

__Orbital Velocity-__

29,7859 km/s.

__Planetary Mass-__

1units.

__Equatorial Radius-__

6378.1 km.

__Equatorial Diameter-__

12756.2 km.

__Mean Density-__

5.52 g/cm^{3}.

__Period Of Rotation-__

0.9973 days.

__Inclination Of The Equator To The Orbit-__

23.45^{o}.

__Albedo-__

0.367.

__Mean Distance From Sun-__

1.0 AU.

__Distance From Sun-__

149.6 x 10^{6} km.

__Gravity-__

9.8 m/s^{2}.

__Days In Year-__

365.25 days.

__Atmospheric Pressure-__

14.7 lbs/in^{2} (at sea level).

__Weight Of Air-__

13.5 ft^{3}. = 1 lb.

__Atmospheric Contents-__

N_{2} = 78.1%, O_{2} = 20.9%, other gasses = 1.0%.

For those of you that are scientifically declined, I have decided to give you a list of definitions for the terms above.

__Sidereal Period-__

The time it takes for a planet to make one revolution around its sun.

__Orbital Velocity-__

How fast a planet moves in its orbit around its sun.

__Planetary Mass-__

The size of a planet compared to that of the Earth.

__Equatorial Radius-__

The radius of the planet's equator.

__Equatorial Diameter-__

The diameter of the planet's equator.

__Mean Density-__

The average of the mass per volume of the planet.

__Period Of Rotation-__

The time it takes for a planet to make one complete spin.

__Inclination of the Equator to the Orbit-__

The planetary tilt, which causes the change in the seasons.

__Albedo-__

The fraction of incident light or electromagnetic radiation that is reflected by a planet or moon.

__Mean Distance (AU)-__

The average distance in Astronomical units from the planet to its sun as compared to the Earth.

__Distance-__

The distance by linear measurement from the planet to its sun.

__Gravity-__

The force of attraction that a planet has. *(The force that keeps us on the ground).*

__Sidereal Day-__

The length of the day on the planet.

__Days in the year-__

How many days are in the planet's year.

__Atmospheric Pressure-__

The pressure of the atmosphere at sea level.

__Weight of the Air-__

How much the air weighs.

__Atmoshperic Contents-__

What the atmosphere contains, (N_{2} is Nitrogen gas, O_{2} is Oxygen gas, and the other gasses are simply the other gasses in the atmosphere).

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