what do you call a resident of a planet
Yes.
It is not normally a requirement. The court may require them to post a bond.
Mark Freedenburg
A resident of Naples is called a Neapolitan.
Oregon state song is call "Oregon My Oregon". It is called Oregon My Oregon because you live their maybe?
A Bangkok resident is commonly referred to as a Bangkokian.
Latvian
Spaniard
A Caldicottian.
You can call them a fellow resident or a neighbor.
A lucky Mexican