Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Imaginary Planetary System

  1. Mar 17, 2016 #1
    I had a dream about groups of nomads constantly travelling around a planet in one direction to stay in the 'dusk/dawn' zone of their planet as if they strayed too far behind they would freeze and if they ventured too far ahead they would cook and vice versa. What might a planetary system look like where this arose i.e day length, year length, planet size, distance from sun etc.

  2. jcsd
  3. Mar 17, 2016 #2
    It would make it a lot easier on these nomads if their planet was tidally locked with its star. They could just stay put in the twilight regions.
  4. Mar 17, 2016 #3


    User Avatar
    Science Advisor
    Gold Member

    A planet like venus with a day that lasts 116 earth days would be an inviting choice. The nomads would need only average about 9 miles an hour to circumnavigate an earth size planet each day.
  5. Mar 17, 2016 #4


    User Avatar
    Staff Emeritus
    Science Advisor

    This sort of set up on Mercury has been written about so many times it's a trope:

    One thing to consider is that it's unlikely a human friendly biosphere could exist on such a planet. The nomads aren't going to be primitive desert dwellers, but rather technologically advanced people's moving accross the planet in mobile habitats.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted

Similar Discussions: Imaginary Planetary System