Independently Tidelocked Moon?
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Simple question that might seem odd. Not going to get too specific but I am curious, more or less, as to what it would look like for a planet that had a moon (A habital one) which was in essence tidally-locked to the star of the system. In addition, just how probable/possible is that, really?
It orbits its planet as any satellite does but isn't tidally locked to it. Instead its spin in relation to its own orbit around the planet (and its own orbit of the sun) causes it to always have the same side facing the sun. I assume this would cause for habitual, essentially daily eclipses for the side in eternal day (Almost equating to its own equivalent of a "night") but I can't find what else that might entail.
gravity orbital-mechanics solar-system tides
asked 4 hours ago
MagillaMagilla
211
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add a comment |
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Simple question that might seem odd. Not going to get too specific but I am curious, more or less, as to what it would look like for a planet that had a moon (A habital one) which was in essence tidally-locked to the star of the system. In addition, just how probable/possible is that, really?
It orbits its planet as any satellite does but isn't tidally locked to it. Instead its spin in relation to its own orbit around the planet (and its own orbit of the sun) causes it to always have the same side facing the sun. I assume this would cause for habitual, essentially daily eclipses for the side in eternal day (Almost equating to its own equivalent of a "night") but I can't find what else that might entail.
gravity orbital-mechanics solar-system tides
asked 4 hours ago
MagillaMagilla
211
New contributor
Magilla is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
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Welcome to worldbuilding, please take the tour and visit the help center to make yourself familiar with our community.
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– L.Dutch♦
4 hours ago
add a comment |
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Simple question that might seem odd. Not going to get too specific but I am curious, more or less, as to what it would look like for a planet that had a moon (A habital one) which was in essence tidally-locked to the star of the system. In addition, just how probable/possible is that, really?
It orbits its planet as any satellite does but isn't tidally locked to it. Instead its spin in relation to its own orbit around the planet (and its own orbit of the sun) causes it to always have the same side facing the sun. I assume this would cause for habitual, essentially daily eclipses for the side in eternal day (Almost equating to its own equivalent of a "night") but I can't find what else that might entail.
gravity orbital-mechanics solar-system tides
asked 4 hours ago
MagillaMagilla
211
New contributor
Magilla is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
Simple question that might seem odd. Not going to get too specific but I am curious, more or less, as to what it would look like for a planet that had a moon (A habital one) which was in essence tidally-locked to the star of the system. In addition, just how probable/possible is that, really?
It orbits its planet as any satellite does but isn't tidally locked to it. Instead its spin in relation to its own orbit around the planet (and its own orbit of the sun) causes it to always have the same side facing the sun. I assume this would cause for habitual, essentially daily eclipses for the side in eternal day (Almost equating to its own equivalent of a "night") but I can't find what else that might entail.
gravity orbital-mechanics solar-system tides
gravity orbital-mechanics solar-system tides
asked 4 hours ago
MagillaMagilla
211
New contributor
Magilla is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 4 hours ago
MagillaMagilla
211
New contributor
Magilla is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 4 hours ago
MagillaMagilla
211
New contributor
Magilla is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 4 hours ago
MagillaMagilla
211
asked 4 hours ago
MagillaMagilla
211
211
New contributor
Magilla is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Magilla is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Magilla is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
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Welcome to worldbuilding, please take the tour and visit the help center to make yourself familiar with our community.
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– L.Dutch♦
4 hours ago
add a comment |
$begingroup$
Welcome to worldbuilding, please take the tour and visit the help center to make yourself familiar with our community.
$endgroup$
– L.Dutch♦
4 hours ago
$begingroup$
Welcome to worldbuilding, please take the tour and visit the help center to make yourself familiar with our community.
$endgroup$
– L.Dutch♦
4 hours ago
$begingroup$
Welcome to worldbuilding, please take the tour and visit the help center to make yourself familiar with our community.
$endgroup$
– L.Dutch♦
4 hours ago
add a comment |
2 Answers
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oldest
votes
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Tidal lock happens when the tidal forces, exerting a momentum on a body, synchronize its rotation around its axis with the revolution around the main body.
Since for a moon-planet-star system the forces exerted by the planet will always be greater than those exerted by the star, there is no way for the moon to be tidally locked with the star and not with the planet.
The only case in which the tidal forces generated by the star are stronger than those generated by the planet implies that the moon is orbiting the star and not the planet.
answered 4 hours ago
L.Dutch♦L.Dutch
80.4k26192391
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So does a moon have to be tidally locked to its planet? Is it not actually feasible a moon's own rotation could not sync like that with a star?
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– Magilla
1 hour ago
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@Magilla It would be a short term (in astronomical terms) and temporary coincidence if it was.
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– Tim B♦
26 mins ago
add a comment |
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For this to happen, the moon would have to be tide locked to the planet while the planet itself isi tode locked to the star.
Notice that surface exposed to the star will vary slightly throughout the year due to axial tilts and also a movement called libration.
answered 36 mins ago
RenanRenan
46.2k11109234
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This still wouldn't work, the moon has to orbit the planet in order not to crash into it
$endgroup$
– Tim B♦
26 mins ago
add a comment |
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2 Answers
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2 Answers
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active
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$begingroup$
Tidal lock happens when the tidal forces, exerting a momentum on a body, synchronize its rotation around its axis with the revolution around the main body.
Since for a moon-planet-star system the forces exerted by the planet will always be greater than those exerted by the star, there is no way for the moon to be tidally locked with the star and not with the planet.
The only case in which the tidal forces generated by the star are stronger than those generated by the planet implies that the moon is orbiting the star and not the planet.
answered 4 hours ago
L.Dutch♦L.Dutch
80.4k26192391
$endgroup$
$begingroup$
So does a moon have to be tidally locked to its planet? Is it not actually feasible a moon's own rotation could not sync like that with a star?
$endgroup$
– Magilla
1 hour ago
$begingroup$
@Magilla It would be a short term (in astronomical terms) and temporary coincidence if it was.
$endgroup$
– Tim B♦
26 mins ago
add a comment |
$begingroup$
Tidal lock happens when the tidal forces, exerting a momentum on a body, synchronize its rotation around its axis with the revolution around the main body.
Since for a moon-planet-star system the forces exerted by the planet will always be greater than those exerted by the star, there is no way for the moon to be tidally locked with the star and not with the planet.
The only case in which the tidal forces generated by the star are stronger than those generated by the planet implies that the moon is orbiting the star and not the planet.
answered 4 hours ago
L.Dutch♦L.Dutch
80.4k26192391
$endgroup$
$begingroup$
So does a moon have to be tidally locked to its planet? Is it not actually feasible a moon's own rotation could not sync like that with a star?
$endgroup$
– Magilla
1 hour ago
$begingroup$
@Magilla It would be a short term (in astronomical terms) and temporary coincidence if it was.
$endgroup$
– Tim B♦
26 mins ago
add a comment |
$begingroup$
Tidal lock happens when the tidal forces, exerting a momentum on a body, synchronize its rotation around its axis with the revolution around the main body.
Since for a moon-planet-star system the forces exerted by the planet will always be greater than those exerted by the star, there is no way for the moon to be tidally locked with the star and not with the planet.
The only case in which the tidal forces generated by the star are stronger than those generated by the planet implies that the moon is orbiting the star and not the planet.
answered 4 hours ago
L.Dutch♦L.Dutch
80.4k26192391
$endgroup$
Tidal lock happens when the tidal forces, exerting a momentum on a body, synchronize its rotation around its axis with the revolution around the main body.
Since for a moon-planet-star system the forces exerted by the planet will always be greater than those exerted by the star, there is no way for the moon to be tidally locked with the star and not with the planet.
The only case in which the tidal forces generated by the star are stronger than those generated by the planet implies that the moon is orbiting the star and not the planet.
answered 4 hours ago
L.Dutch♦L.Dutch
80.4k26192391
answered 4 hours ago
L.Dutch♦L.Dutch
80.4k26192391
answered 4 hours ago
L.Dutch♦L.Dutch
80.4k26192391
answered 4 hours ago
L.Dutch♦L.Dutch
80.4k26192391
80.4k26192391
$begingroup$
So does a moon have to be tidally locked to its planet? Is it not actually feasible a moon's own rotation could not sync like that with a star?
$endgroup$
– Magilla
1 hour ago
$begingroup$
@Magilla It would be a short term (in astronomical terms) and temporary coincidence if it was.
$endgroup$
– Tim B♦
26 mins ago
add a comment |
$begingroup$
So does a moon have to be tidally locked to its planet? Is it not actually feasible a moon's own rotation could not sync like that with a star?
$endgroup$
– Magilla
1 hour ago
$begingroup$
@Magilla It would be a short term (in astronomical terms) and temporary coincidence if it was.
$endgroup$
– Tim B♦
26 mins ago
$begingroup$
So does a moon have to be tidally locked to its planet? Is it not actually feasible a moon's own rotation could not sync like that with a star?
$endgroup$
– Magilla
1 hour ago
$begingroup$
So does a moon have to be tidally locked to its planet? Is it not actually feasible a moon's own rotation could not sync like that with a star?
$endgroup$
– Magilla
1 hour ago
$begingroup$
@Magilla It would be a short term (in astronomical terms) and temporary coincidence if it was.
$endgroup$
– Tim B♦
26 mins ago
$begingroup$
@Magilla It would be a short term (in astronomical terms) and temporary coincidence if it was.
$endgroup$
– Tim B♦
26 mins ago
add a comment |
$begingroup$
For this to happen, the moon would have to be tide locked to the planet while the planet itself isi tode locked to the star.
Notice that surface exposed to the star will vary slightly throughout the year due to axial tilts and also a movement called libration.
answered 36 mins ago
RenanRenan
46.2k11109234
$endgroup$
$begingroup$
This still wouldn't work, the moon has to orbit the planet in order not to crash into it
$endgroup$
– Tim B♦
26 mins ago
add a comment |
$begingroup$
For this to happen, the moon would have to be tide locked to the planet while the planet itself isi tode locked to the star.
Notice that surface exposed to the star will vary slightly throughout the year due to axial tilts and also a movement called libration.
answered 36 mins ago
RenanRenan
46.2k11109234
$endgroup$
$begingroup$
This still wouldn't work, the moon has to orbit the planet in order not to crash into it
$endgroup$
– Tim B♦
26 mins ago
add a comment |
$begingroup$
For this to happen, the moon would have to be tide locked to the planet while the planet itself isi tode locked to the star.
Notice that surface exposed to the star will vary slightly throughout the year due to axial tilts and also a movement called libration.
answered 36 mins ago
RenanRenan
46.2k11109234
$endgroup$
For this to happen, the moon would have to be tide locked to the planet while the planet itself isi tode locked to the star.
Notice that surface exposed to the star will vary slightly throughout the year due to axial tilts and also a movement called libration.
answered 36 mins ago
RenanRenan
46.2k11109234
answered 36 mins ago
RenanRenan
46.2k11109234
answered 36 mins ago
RenanRenan
46.2k11109234
answered 36 mins ago
RenanRenan
46.2k11109234
46.2k11109234
$begingroup$
This still wouldn't work, the moon has to orbit the planet in order not to crash into it
$endgroup$
– Tim B♦
26 mins ago
add a comment |
$begingroup$
This still wouldn't work, the moon has to orbit the planet in order not to crash into it
$endgroup$
– Tim B♦
26 mins ago
$begingroup$
This still wouldn't work, the moon has to orbit the planet in order not to crash into it
$endgroup$
– Tim B♦
26 mins ago
$begingroup$
This still wouldn't work, the moon has to orbit the planet in order not to crash into it
$endgroup$
– Tim B♦
26 mins ago
add a comment |
Magilla is a new contributor. Be nice, and check out our Code of Conduct.
Magilla is a new contributor. Be nice, and check out our Code of Conduct.
Magilla is a new contributor. Be nice, and check out our Code of Conduct.
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Welcome to worldbuilding, please take the tour and visit the help center to make yourself familiar with our community.
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– L.Dutch♦
4 hours ago