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The Earth resolves around the Sun or the Sun revolves around the Earth
Revolution of EarthBecause position is relative, is it possible to see a star orbiting a planet?Relative Motion and orbiting planetsIs the Earth the center of the Solar System?Falling into the sun, a thought experiment for trying to understand reference framesExplanation for a much simpler version of the twin paradox?Special Relativity and Composition Law for Velocities with respect to an observer watching two objects moving away from a central pointDoes a photon not having a reference frame result in logical inconsistency?Explain the relative motion between two particles of a rotating rigid bodyAre distance and displacement always frame independent?
$begingroup$
Well, in today's world we know that the earth resolves around the sun. But that is seen from frame of reference of sun or an observer stationary wrt sun.
From frame of reference of the earth, sun revolves around earth. But why modern physics says one is right while the other is wrong?
Shouldn't both be correct? As relativity says no frame of reference is special. And if we are very specific, both of them revolve around each other.
reference-frames orbital-motion inertial-frames solar-system celestial-mechanics
edited 4 hours ago
Qmechanic♦
109k122051271
asked 5 hours ago
sakurasakura
111
New contributor
sakura is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
add a comment |
$begingroup$
Well, in today's world we know that the earth resolves around the sun. But that is seen from frame of reference of sun or an observer stationary wrt sun.
From frame of reference of the earth, sun revolves around earth. But why modern physics says one is right while the other is wrong?
Shouldn't both be correct? As relativity says no frame of reference is special. And if we are very specific, both of them revolve around each other.
reference-frames orbital-motion inertial-frames solar-system celestial-mechanics
edited 4 hours ago
Qmechanic♦
109k122051271
asked 5 hours ago
sakurasakura
111
New contributor
sakura is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
add a comment |
$begingroup$
Well, in today's world we know that the earth resolves around the sun. But that is seen from frame of reference of sun or an observer stationary wrt sun.
From frame of reference of the earth, sun revolves around earth. But why modern physics says one is right while the other is wrong?
Shouldn't both be correct? As relativity says no frame of reference is special. And if we are very specific, both of them revolve around each other.
reference-frames orbital-motion inertial-frames solar-system celestial-mechanics
edited 4 hours ago
Qmechanic♦
109k122051271
asked 5 hours ago
sakurasakura
111
New contributor
sakura is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
Well, in today's world we know that the earth resolves around the sun. But that is seen from frame of reference of sun or an observer stationary wrt sun.
From frame of reference of the earth, sun revolves around earth. But why modern physics says one is right while the other is wrong?
Shouldn't both be correct? As relativity says no frame of reference is special. And if we are very specific, both of them revolve around each other.
reference-frames orbital-motion inertial-frames solar-system celestial-mechanics
reference-frames orbital-motion inertial-frames solar-system celestial-mechanics
edited 4 hours ago
Qmechanic♦
109k122051271
asked 5 hours ago
sakurasakura
111
New contributor
sakura is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 4 hours ago
Qmechanic♦
109k122051271
asked 5 hours ago
sakurasakura
111
New contributor
sakura is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 4 hours ago
Qmechanic♦
109k122051271
edited 4 hours ago
Qmechanic♦
109k122051271
edited 4 hours ago
Qmechanic♦
109k122051271
109k122051271
asked 5 hours ago
sakurasakura
111
New contributor
sakura is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 5 hours ago
sakurasakura
111
asked 5 hours ago
sakurasakura
111
111
New contributor
sakura is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
sakura is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
add a comment |
2 Answers
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$begingroup$
Considering only the Earth and the Sun, they both revolve around their center of mass. But since the Sun so much more massive, their center of mass is much closer to the Sun than to the Earth. So close, in fact, that it is well within the body of the Sun, just 280 miles from the center.
So the Sun just wiggles a bit, its center moving in a tiny 280-mile-radius “orbit” around that COM. By contrast, the Earth’s orbit has a radius of 93 million miles. Relative to the COM, the Sun’s acceleration is tiny compared with that of the Earth, so we tend to think of the Sun as more or less stationary and the Earth as revolving around it.
The center of mass of the solar system is also accelerating, due to the gravitation in our Milky Way galaxy. And the center of mass of the galaxy is accelerating due to the gravitation in our local cluster of galaxies.
answered 5 hours ago
G. SmithG. Smith
13k12045
$endgroup$
add a comment |
$begingroup$
This is to point out one key error in your thought process.
As relativity says no frame of reference is special.
(Classical) relativity says that no inertial frame of reference is special.
The frame of reference that has the Earth stationary is not an inertial frame, because the Earth must accelerate to maintain (roughly) circular motion around the sun.
The reference frame that has the Sun stationary is also not strictly an inertial frame, since the Sun is orbiting around the galactic center. But the acceleration associated with that orbit is affecting the Earth as much as it is the Sun, so the errors resulting in treating this frame as an approximately inertial frame are not significant in the analysis of the Sun-Earth system.
answered 4 hours ago
The PhotonThe Photon
10.2k11935
$endgroup$
$begingroup$
The Sun also orbits Sun-Earth center of mass, which may be more important than acceleration due to orbiting the galactic center. But anyway, if we use General Relativity, both the Sun and the Earth are in free fall, so corresponding frames of reference are both inertial.
$endgroup$
– Ruslan
3 hours ago
add a comment |
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2 Answers
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active
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2 Answers
2
active
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active
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active
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$begingroup$
Considering only the Earth and the Sun, they both revolve around their center of mass. But since the Sun so much more massive, their center of mass is much closer to the Sun than to the Earth. So close, in fact, that it is well within the body of the Sun, just 280 miles from the center.
So the Sun just wiggles a bit, its center moving in a tiny 280-mile-radius “orbit” around that COM. By contrast, the Earth’s orbit has a radius of 93 million miles. Relative to the COM, the Sun’s acceleration is tiny compared with that of the Earth, so we tend to think of the Sun as more or less stationary and the Earth as revolving around it.
The center of mass of the solar system is also accelerating, due to the gravitation in our Milky Way galaxy. And the center of mass of the galaxy is accelerating due to the gravitation in our local cluster of galaxies.
answered 5 hours ago
G. SmithG. Smith
13k12045
$endgroup$
add a comment |
$begingroup$
Considering only the Earth and the Sun, they both revolve around their center of mass. But since the Sun so much more massive, their center of mass is much closer to the Sun than to the Earth. So close, in fact, that it is well within the body of the Sun, just 280 miles from the center.
So the Sun just wiggles a bit, its center moving in a tiny 280-mile-radius “orbit” around that COM. By contrast, the Earth’s orbit has a radius of 93 million miles. Relative to the COM, the Sun’s acceleration is tiny compared with that of the Earth, so we tend to think of the Sun as more or less stationary and the Earth as revolving around it.
The center of mass of the solar system is also accelerating, due to the gravitation in our Milky Way galaxy. And the center of mass of the galaxy is accelerating due to the gravitation in our local cluster of galaxies.
answered 5 hours ago
G. SmithG. Smith
13k12045
$endgroup$
add a comment |
$begingroup$
Considering only the Earth and the Sun, they both revolve around their center of mass. But since the Sun so much more massive, their center of mass is much closer to the Sun than to the Earth. So close, in fact, that it is well within the body of the Sun, just 280 miles from the center.
So the Sun just wiggles a bit, its center moving in a tiny 280-mile-radius “orbit” around that COM. By contrast, the Earth’s orbit has a radius of 93 million miles. Relative to the COM, the Sun’s acceleration is tiny compared with that of the Earth, so we tend to think of the Sun as more or less stationary and the Earth as revolving around it.
The center of mass of the solar system is also accelerating, due to the gravitation in our Milky Way galaxy. And the center of mass of the galaxy is accelerating due to the gravitation in our local cluster of galaxies.
answered 5 hours ago
G. SmithG. Smith
13k12045
$endgroup$
Considering only the Earth and the Sun, they both revolve around their center of mass. But since the Sun so much more massive, their center of mass is much closer to the Sun than to the Earth. So close, in fact, that it is well within the body of the Sun, just 280 miles from the center.
So the Sun just wiggles a bit, its center moving in a tiny 280-mile-radius “orbit” around that COM. By contrast, the Earth’s orbit has a radius of 93 million miles. Relative to the COM, the Sun’s acceleration is tiny compared with that of the Earth, so we tend to think of the Sun as more or less stationary and the Earth as revolving around it.
The center of mass of the solar system is also accelerating, due to the gravitation in our Milky Way galaxy. And the center of mass of the galaxy is accelerating due to the gravitation in our local cluster of galaxies.
answered 5 hours ago
G. SmithG. Smith
13k12045
edited 5 hours ago
answered 5 hours ago
G. SmithG. Smith
13k12045
answered 5 hours ago
G. SmithG. Smith
13k12045
answered 5 hours ago
G. SmithG. Smith
13k12045
13k12045
add a comment |
add a comment |
$begingroup$
This is to point out one key error in your thought process.
As relativity says no frame of reference is special.
(Classical) relativity says that no inertial frame of reference is special.
The frame of reference that has the Earth stationary is not an inertial frame, because the Earth must accelerate to maintain (roughly) circular motion around the sun.
The reference frame that has the Sun stationary is also not strictly an inertial frame, since the Sun is orbiting around the galactic center. But the acceleration associated with that orbit is affecting the Earth as much as it is the Sun, so the errors resulting in treating this frame as an approximately inertial frame are not significant in the analysis of the Sun-Earth system.
answered 4 hours ago
The PhotonThe Photon
10.2k11935
$endgroup$
$begingroup$
The Sun also orbits Sun-Earth center of mass, which may be more important than acceleration due to orbiting the galactic center. But anyway, if we use General Relativity, both the Sun and the Earth are in free fall, so corresponding frames of reference are both inertial.
$endgroup$
– Ruslan
3 hours ago
add a comment |
$begingroup$
This is to point out one key error in your thought process.
As relativity says no frame of reference is special.
(Classical) relativity says that no inertial frame of reference is special.
The frame of reference that has the Earth stationary is not an inertial frame, because the Earth must accelerate to maintain (roughly) circular motion around the sun.
The reference frame that has the Sun stationary is also not strictly an inertial frame, since the Sun is orbiting around the galactic center. But the acceleration associated with that orbit is affecting the Earth as much as it is the Sun, so the errors resulting in treating this frame as an approximately inertial frame are not significant in the analysis of the Sun-Earth system.
answered 4 hours ago
The PhotonThe Photon
10.2k11935
$endgroup$
$begingroup$
The Sun also orbits Sun-Earth center of mass, which may be more important than acceleration due to orbiting the galactic center. But anyway, if we use General Relativity, both the Sun and the Earth are in free fall, so corresponding frames of reference are both inertial.
$endgroup$
– Ruslan
3 hours ago
add a comment |
$begingroup$
This is to point out one key error in your thought process.
As relativity says no frame of reference is special.
(Classical) relativity says that no inertial frame of reference is special.
The frame of reference that has the Earth stationary is not an inertial frame, because the Earth must accelerate to maintain (roughly) circular motion around the sun.
The reference frame that has the Sun stationary is also not strictly an inertial frame, since the Sun is orbiting around the galactic center. But the acceleration associated with that orbit is affecting the Earth as much as it is the Sun, so the errors resulting in treating this frame as an approximately inertial frame are not significant in the analysis of the Sun-Earth system.
answered 4 hours ago
The PhotonThe Photon
10.2k11935
$endgroup$
This is to point out one key error in your thought process.
As relativity says no frame of reference is special.
(Classical) relativity says that no inertial frame of reference is special.
The frame of reference that has the Earth stationary is not an inertial frame, because the Earth must accelerate to maintain (roughly) circular motion around the sun.
The reference frame that has the Sun stationary is also not strictly an inertial frame, since the Sun is orbiting around the galactic center. But the acceleration associated with that orbit is affecting the Earth as much as it is the Sun, so the errors resulting in treating this frame as an approximately inertial frame are not significant in the analysis of the Sun-Earth system.
answered 4 hours ago
The PhotonThe Photon
10.2k11935
answered 4 hours ago
The PhotonThe Photon
10.2k11935
answered 4 hours ago
The PhotonThe Photon
10.2k11935
answered 4 hours ago
The PhotonThe Photon
10.2k11935
10.2k11935
$begingroup$
The Sun also orbits Sun-Earth center of mass, which may be more important than acceleration due to orbiting the galactic center. But anyway, if we use General Relativity, both the Sun and the Earth are in free fall, so corresponding frames of reference are both inertial.
$endgroup$
– Ruslan
3 hours ago
add a comment |
$begingroup$
The Sun also orbits Sun-Earth center of mass, which may be more important than acceleration due to orbiting the galactic center. But anyway, if we use General Relativity, both the Sun and the Earth are in free fall, so corresponding frames of reference are both inertial.
$endgroup$
– Ruslan
3 hours ago
$begingroup$
The Sun also orbits Sun-Earth center of mass, which may be more important than acceleration due to orbiting the galactic center. But anyway, if we use General Relativity, both the Sun and the Earth are in free fall, so corresponding frames of reference are both inertial.
$endgroup$
– Ruslan
3 hours ago
$begingroup$
The Sun also orbits Sun-Earth center of mass, which may be more important than acceleration due to orbiting the galactic center. But anyway, if we use General Relativity, both the Sun and the Earth are in free fall, so corresponding frames of reference are both inertial.
$endgroup$
– Ruslan
3 hours ago
add a comment |
sakura is a new contributor. Be nice, and check out our Code of Conduct.
sakura is a new contributor. Be nice, and check out our Code of Conduct.
sakura is a new contributor. Be nice, and check out our Code of Conduct.
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