What would be used for “coordinates” on a large asteroid?
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Assuming we had a non-spherical asteroid that doesn't have a magnetic "north", how would the inhabitants define areas on the asteroid? How would they explain to a visitor to go to a very specific spot to retrieve or leave something besides "head over the hill sunward for 50 km"
map-making asteroids
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up vote
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Assuming we had a non-spherical asteroid that doesn't have a magnetic "north", how would the inhabitants define areas on the asteroid? How would they explain to a visitor to go to a very specific spot to retrieve or leave something besides "head over the hill sunward for 50 km"
map-making asteroids
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TChris Gardner is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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Welcome to Worldbuilding! Great first question!
– kingledion
1 hour ago
add a comment |
up vote
4
down vote
favorite
up vote
4
down vote
favorite
Assuming we had a non-spherical asteroid that doesn't have a magnetic "north", how would the inhabitants define areas on the asteroid? How would they explain to a visitor to go to a very specific spot to retrieve or leave something besides "head over the hill sunward for 50 km"
map-making asteroids
New contributor
TChris Gardner is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Assuming we had a non-spherical asteroid that doesn't have a magnetic "north", how would the inhabitants define areas on the asteroid? How would they explain to a visitor to go to a very specific spot to retrieve or leave something besides "head over the hill sunward for 50 km"
map-making asteroids
map-making asteroids
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TChris Gardner is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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TChris Gardner is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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edited 1 hour ago
kingledion
72.1k25243426
72.1k25243426
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asked 2 hours ago
TChris Gardner
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TChris Gardner is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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Welcome to Worldbuilding! Great first question!
– kingledion
1 hour ago
add a comment |
Welcome to Worldbuilding! Great first question!
– kingledion
1 hour ago
Welcome to Worldbuilding! Great first question!
– kingledion
1 hour ago
Welcome to Worldbuilding! Great first question!
– kingledion
1 hour ago
add a comment |
2 Answers
2
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My suggestion would be that you select a point on the asteroid to act as a pole. Perhaps the point of first landing? Then, using that point and asteroid's centre of gravity as references, you can map spherical coordinates.
2
This is the only option. The details may vary: such as using geostationary satelites, but because astroids don't have poles and their arbitrary rotation makes external (independent of the asteroid) references almost meaningless, picking a point and pounding in the proverbial survey stake is all you can do to guarantee a predictable solution. Consider the Paris Meridian.
– JBH
1 hour ago
How well do spherical coordinates map to an asteroid that isn't necessarily spherical? Many of them are pretty substantially "squished" in one direction or another.
– Cadence
12 mins ago
add a comment |
up vote
2
down vote
Whoever is going to be on that asteroid will necessarily used radio communication to keep in contact with the rest of the crew.
To ensure communication a network of antennas has to be established, since a single antenna could at best serve half of the asteroid.
Each position can then be simply referred to the distance from the (closest) antennas.
add a comment |
2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
3
down vote
My suggestion would be that you select a point on the asteroid to act as a pole. Perhaps the point of first landing? Then, using that point and asteroid's centre of gravity as references, you can map spherical coordinates.
2
This is the only option. The details may vary: such as using geostationary satelites, but because astroids don't have poles and their arbitrary rotation makes external (independent of the asteroid) references almost meaningless, picking a point and pounding in the proverbial survey stake is all you can do to guarantee a predictable solution. Consider the Paris Meridian.
– JBH
1 hour ago
How well do spherical coordinates map to an asteroid that isn't necessarily spherical? Many of them are pretty substantially "squished" in one direction or another.
– Cadence
12 mins ago
add a comment |
up vote
3
down vote
My suggestion would be that you select a point on the asteroid to act as a pole. Perhaps the point of first landing? Then, using that point and asteroid's centre of gravity as references, you can map spherical coordinates.
2
This is the only option. The details may vary: such as using geostationary satelites, but because astroids don't have poles and their arbitrary rotation makes external (independent of the asteroid) references almost meaningless, picking a point and pounding in the proverbial survey stake is all you can do to guarantee a predictable solution. Consider the Paris Meridian.
– JBH
1 hour ago
How well do spherical coordinates map to an asteroid that isn't necessarily spherical? Many of them are pretty substantially "squished" in one direction or another.
– Cadence
12 mins ago
add a comment |
up vote
3
down vote
up vote
3
down vote
My suggestion would be that you select a point on the asteroid to act as a pole. Perhaps the point of first landing? Then, using that point and asteroid's centre of gravity as references, you can map spherical coordinates.
My suggestion would be that you select a point on the asteroid to act as a pole. Perhaps the point of first landing? Then, using that point and asteroid's centre of gravity as references, you can map spherical coordinates.
edited 1 hour ago
answered 2 hours ago
Arkenstein XII
1,725219
1,725219
2
This is the only option. The details may vary: such as using geostationary satelites, but because astroids don't have poles and their arbitrary rotation makes external (independent of the asteroid) references almost meaningless, picking a point and pounding in the proverbial survey stake is all you can do to guarantee a predictable solution. Consider the Paris Meridian.
– JBH
1 hour ago
How well do spherical coordinates map to an asteroid that isn't necessarily spherical? Many of them are pretty substantially "squished" in one direction or another.
– Cadence
12 mins ago
add a comment |
2
This is the only option. The details may vary: such as using geostationary satelites, but because astroids don't have poles and their arbitrary rotation makes external (independent of the asteroid) references almost meaningless, picking a point and pounding in the proverbial survey stake is all you can do to guarantee a predictable solution. Consider the Paris Meridian.
– JBH
1 hour ago
How well do spherical coordinates map to an asteroid that isn't necessarily spherical? Many of them are pretty substantially "squished" in one direction or another.
– Cadence
12 mins ago
2
2
This is the only option. The details may vary: such as using geostationary satelites, but because astroids don't have poles and their arbitrary rotation makes external (independent of the asteroid) references almost meaningless, picking a point and pounding in the proverbial survey stake is all you can do to guarantee a predictable solution. Consider the Paris Meridian.
– JBH
1 hour ago
This is the only option. The details may vary: such as using geostationary satelites, but because astroids don't have poles and their arbitrary rotation makes external (independent of the asteroid) references almost meaningless, picking a point and pounding in the proverbial survey stake is all you can do to guarantee a predictable solution. Consider the Paris Meridian.
– JBH
1 hour ago
How well do spherical coordinates map to an asteroid that isn't necessarily spherical? Many of them are pretty substantially "squished" in one direction or another.
– Cadence
12 mins ago
How well do spherical coordinates map to an asteroid that isn't necessarily spherical? Many of them are pretty substantially "squished" in one direction or another.
– Cadence
12 mins ago
add a comment |
up vote
2
down vote
Whoever is going to be on that asteroid will necessarily used radio communication to keep in contact with the rest of the crew.
To ensure communication a network of antennas has to be established, since a single antenna could at best serve half of the asteroid.
Each position can then be simply referred to the distance from the (closest) antennas.
add a comment |
up vote
2
down vote
Whoever is going to be on that asteroid will necessarily used radio communication to keep in contact with the rest of the crew.
To ensure communication a network of antennas has to be established, since a single antenna could at best serve half of the asteroid.
Each position can then be simply referred to the distance from the (closest) antennas.
add a comment |
up vote
2
down vote
up vote
2
down vote
Whoever is going to be on that asteroid will necessarily used radio communication to keep in contact with the rest of the crew.
To ensure communication a network of antennas has to be established, since a single antenna could at best serve half of the asteroid.
Each position can then be simply referred to the distance from the (closest) antennas.
Whoever is going to be on that asteroid will necessarily used radio communication to keep in contact with the rest of the crew.
To ensure communication a network of antennas has to be established, since a single antenna could at best serve half of the asteroid.
Each position can then be simply referred to the distance from the (closest) antennas.
answered 1 hour ago
L.Dutch♦
71.3k22171343
71.3k22171343
add a comment |
add a comment |
TChris Gardner is a new contributor. Be nice, and check out our Code of Conduct.
TChris Gardner is a new contributor. Be nice, and check out our Code of Conduct.
TChris Gardner is a new contributor. Be nice, and check out our Code of Conduct.
TChris Gardner is a new contributor. Be nice, and check out our Code of Conduct.
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Welcome to Worldbuilding! Great first question!
– kingledion
1 hour ago