Comparative for Sky Directions [closed]

Can you say that something is more souther or more easter than a specific place? How do you give the comparative and superlative forms for North, East, South and West.

I am writing a book, and to explain the positions of my countries I need to use phrases like "A is more souther than B", while having looked up, the word "souther" apparently doesn't exist.

I add the word southerly which Lexico says is an

ADJECTIVE

1 Lying or moving in a southward position or direction.

So if place B is already considered to be in a southern location then

A is more southerly than B

I need to use phrases like "A is more souther than B",

"A is further south than B"

https://brilliantmaps.com/cities-transposed-latitude/ "London (51°30′N) is farther north than Calgary (51°03′N) with Amsterdam, Berlin and Dublin being located even further north."

It seems that farther and further are used indiscriminately... I would use "further".

You would generally say "further South/East/West/North than"