Communities

Writing
Writing
Codidact Meta
Codidact Meta
The Great Outdoors
The Great Outdoors
Photography & Video
Photography & Video
Scientific Speculation
Scientific Speculation
Cooking
Cooking
Electrical Engineering
Electrical Engineering
Judaism
Judaism
Languages & Linguistics
Languages & Linguistics
Software Development
Software Development
Mathematics
Mathematics
Christianity
Christianity
Code Golf
Code Golf
Music
Music
Physics
Physics
Linux Systems
Linux Systems
Power Users
Power Users
Tabletop RPGs
Tabletop RPGs
Community Proposals
Community Proposals
tag:snake search within a tag
answers:0 unanswered questions
user:xxxx search by author id
score:0.5 posts with 0.5+ score
"snake oil" exact phrase
votes:4 posts with 4+ votes
created:<1w created < 1 week ago
post_type:xxxx type of post
Search help
Notifications
Mark all as read See all your notifications »
Q&A

Could two planets follow the same orbit and never "see" each other?

+0
−0

Imagine two identical planets planet A and planet B, orbiting the same star.

Is it possible that these two planets follow the exact same "route" as they orbit their sun, but are just distant enough from one another, that their star is effectively always between the two, so that a hypothetical person sitting on planet A would not be able to see planet B due to it being behind the star?

Sample drawing of the orbit (proportions gloriously inaccurate)

I assumed, based on the limited knowledge I have on the subject, that all star systems have ellipsoidal orbits (the star being in one of the two focal points) just like our own.

If I'm wrong, though, and perhaps a stellar system with circular orbits is possible (and I assume it would make my idea more feasible) please do point it out.

If this is at all possible, what are the "requirements" to make it work?

Note that this doesn't necessarily have to last indefinitely (e.g. maybe the orbit screws itself up after, say, 1000 years)

Also, what is the approximate minimum level of technology that a civilization inhabiting planet A would need to have good chances of finding out about planet B's existence?

History
Why does this post require attention from curators or moderators?
You might want to add some details to your flag.
Why should this post be closed?

This post was sourced from https://worldbuilding.stackexchange.com/q/102685. It is licensed under CC BY-SA 3.0.

0 comment threads

0 answers

Sign up to answer this question »