Imaginary Planetary System

[Jamesavery88]

I had a dream about groups of nomads constantly traveling 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.

Cheers!

 

[Alltimegreat1]

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.

 

[Chronos]

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.

 

[Ryan_m_b]

This sort of set up on Mercury has been written about so many times it's a trope:
http://tvtropes.org/pmwiki/pmwiki.php/Main/MercurialBase

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 across the planet in mobile habitats.