Geographers use map projections to translate the planet in a two dimensional representation. Unfortunately, you can’t display 3D surfaces perfectly in two dimensions, distortions always occur. There are many different projections that are commonly used throughout the world.
The approximate age of a star cluster where the brightest main sequence stars are G stars is 10 billion years. Generally, it takes tons of time for stars to evolve. It is also assumed that stars in a cluster are homogenous or have properties that are similar to one another. The amount of time the star remain in its stage or sequence phase is determined through its mass.
Forty degrees north, I believe.