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

What stars and composition of gases should my planets have to have a sky for each colour in the rainbow?

+0
−0

There are seven planets, and each one has a different coloured sky. One has red, one has orange, all the way up to indigo and violet. Of course, they don't have a sky this colour all the time, but preferably for most of the 'daytime'.

However, those aren't the only limitations. Humans must be able to survive in each of the seven without special equipment, and it must be possible for people from any one planet to be able to survive (maybe with a little special training) on any of the other planets.

These must be 'humans', with at least roughly identical anatomy to us on Earth, though the 'blue' planet doesn't have to be Earth.

The tilt, composition of the bulk of the planet, colour and kind of star, can be different if necessary, and these planets do not have to be in the same solar system.

What is the best way to achieve this?

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/96303. It is licensed under CC BY-SA 3.0.

0 comment threads

0 answers

Sign up to answer this question »