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The theory is based on motions constraints, chemical constraints, and age constraints.
There are many regularities to the motions in the solar system: all of the planets revolve around the sun in the same direction and approximately in the plane of the Sun's own rotation. Additionally, most of the planets rotate in the same direction as they revolve and most of the satellites also move in counterclockwise orbits (when viewed from the North).
The chemical compositions of Jupiter and Saturn have approximately the same composition, mostly Hydrogen and Helium, as the Sun and the stars. These are the two largest planets, with sufficient gravity to hold on to any gas present when and where they formed; thus we might expect them to be representative of the original material out of which the solar system formed. Each of the other members of the planetary system is, to some degree, lacking in the light elements. The composition of the solid solar-system objects shows a progression from the metal-rich inner planets, through those made of mostly rocky materials, out to objects composed mainly of ice. This general pattern can be interpreted as a temperature sequence, with the inner parts of the system strongly depleted in materials that could not condense at high temperatures found near the Sun.
The age of the Earth is determined through radioactive dating. On the Earth, the date is around 3.8 billion years--but the Earth has probably resurfaced since its birth. Lunar rocks are around 4.4 billion years old and all primitive meteorites have radioactive ages near 4.5 billion years.
What else can I help you with?
What is the center of the solar system called?
The Sun is at the center of the Solar System. the SUN is the centre of our solar system.
What is at the center of your Solar Systems?
The center of our Solar System is the Sun, a star that provides heat, light, and energy to the planets orbiting around it.
What is the name of the center of the solar system?
The center of mass of the solar system is inside the sun, not too far from its geometric center.
What is sun in the solar system?
The Sun is the star at the center of our solar system. It is a massive ball of hydrogen and helium that generates light and heat through nuclear fusion. The Sun's gravity holds the solar system together and provides the energy necessary for life on Earth.
What object is at the center of the Sun?
the moon is in the center of the solar system:)
What is the sun center of?
There is no such thing as a sun of the center.
The sun at the center of the solar system?
Yes. The sun is in the center of the solar system.
Is the sun the center of your solar system?
Yes.The sun is the center of the solar system.
Is the star at the center of our solar system?
The Sun is at the Center of our Solar system. and yes, the sun is a star
What is the center of the solar system called?
The Sun is at the center of the Solar System. the SUN is the centre of our solar system.
What Galileo discovery provided the greatest evidence that the sun must be at the center of the solar system?
The sun has rings (I think)
What place does the sun have in the solar system?
The sun is at the center of the solar system.
What is the center body of the solar system?
The center body of the solar system is the Sun.
When is the earth in the center of the solar system?
Never. The center of the Solar System is basically the Sun. Actually, the Solar System's center of mass is outside the Sun, but very near to it.
What is at the center of your Solar Systems?
The center of our Solar System is the Sun, a star that provides heat, light, and energy to the planets orbiting around it.
Why is the system of sun and planet called the solar system?
Solar means sun and the sun is the star at the center of our "system" ,thus solar system (sun system).
Why is the system of the sun and planet called the solar system?
Solar means sun and the sun is the star at the center of our "system" ,thus solar system (sun system).
