Skip to main content
Physics

Return to Question

Removed from Network Questions by Qmechanic♦
Became Hot Network Question
edited tags
Source Link
Qmechanic ♦
Qmechanic ♦
  • 212.9k
  • 48
  • 589
  • 2.3k

How do we know when the earth completes a revolutionan orbit?

Two bodies in space always orbit their center of mass. So the relative motion of the Sun and the Earth happen in the same line, save for the rotation of the Sun. So, how do we measure

  • The time taken for the Earth to orbit the barycenter

    The time taken for the Earth to orbit the barycenter

  • The time taken for the Earth to orbit the Sun (The solar rotation period is 28 days while the Earth's period of revolution is 365 days, so does that mean the earth can never revolve around the Sun, considering the Earth is revolving around the barycenter, and not around a stationary Sun? Or do we calculate the time of revolution in the opposite direction? If I place a camera on the surface of the Sun, will I see the earth completing a revolution only in the opposite direction? If that is not the definition of a orbital revolution, what else is?)

    The time taken for the Earth to orbit the Sun (The solar rotation period is 28 days while the Earth's period of revolution is 365 days, so does that mean the earth can never revolve around the Sun, considering the Earth is revolving around the barycenter, and not around a stationary Sun? Or do we calculate the time of revolution in the opposite direction? If I place a camera on the surface of the Sun, will I see the earth completing a revolution only in the opposite direction? If that is not the definition of a orbital revolution, what else is?)

I'm aware of the sidereal and tropical years for measuring the calendar year, I'm just concerned about the concept of orbital revolution.

Is the concept of revolution even properly defined compared to the conventional definition if we consider that we orbit the barycenter and not the center of the Sun?

How do we know when the earth completes a revolution?

Two bodies in space always orbit their center of mass. So the relative motion of the Sun and the Earth happen in the same line, save for the rotation of the Sun. So, how do we measure

  • The time taken for the Earth to orbit the barycenter
  • The time taken for the Earth to orbit the Sun (The solar rotation period is 28 days while the Earth's period of revolution is 365 days, so does that mean the earth can never revolve around the Sun, considering the Earth is revolving around the barycenter, and not around a stationary Sun? Or do we calculate the time of revolution in the opposite direction? If I place a camera on the surface of the Sun, will I see the earth completing a revolution only in the opposite direction? If that is not the definition of a orbital revolution, what else is?)

I'm aware of the sidereal and tropical years for measuring the calendar year, I'm just concerned about the concept of orbital revolution.

Is the concept of revolution even properly defined compared to the conventional definition if we consider that we orbit the barycenter and not the center of the Sun?

How do we know when the earth completes an orbit?

Two bodies in space always orbit their center of mass. So the relative motion of the Sun and the Earth happen in the same line, save for the rotation of the Sun. So, how do we measure

  • The time taken for the Earth to orbit the barycenter

  • The time taken for the Earth to orbit the Sun (The solar rotation period is 28 days while the Earth's period of revolution is 365 days, so does that mean the earth can never revolve around the Sun, considering the Earth is revolving around the barycenter, and not around a stationary Sun? Or do we calculate the time of revolution in the opposite direction? If I place a camera on the surface of the Sun, will I see the earth completing a revolution only in the opposite direction? If that is not the definition of a orbital revolution, what else is?)

I'm aware of the sidereal and tropical years for measuring the calendar year, I'm just concerned about the concept of orbital revolution.

Is the concept of revolution even properly defined compared to the conventional definition if we consider that we orbit the barycenter and not the center of the Sun?

Source Link
Jyothish Kumar
Jyothish Kumar
  • 41
  • 2

How do we know when the earth completes a revolution?

Two bodies in space always orbit their center of mass. So the relative motion of the Sun and the Earth happen in the same line, save for the rotation of the Sun. So, how do we measure

  • The time taken for the Earth to orbit the barycenter
  • The time taken for the Earth to orbit the Sun (The solar rotation period is 28 days while the Earth's period of revolution is 365 days, so does that mean the earth can never revolve around the Sun, considering the Earth is revolving around the barycenter, and not around a stationary Sun? Or do we calculate the time of revolution in the opposite direction? If I place a camera on the surface of the Sun, will I see the earth completing a revolution only in the opposite direction? If that is not the definition of a orbital revolution, what else is?)

I'm aware of the sidereal and tropical years for measuring the calendar year, I'm just concerned about the concept of orbital revolution.

Is the concept of revolution even properly defined compared to the conventional definition if we consider that we orbit the barycenter and not the center of the Sun?