jim7

Hi frihost forum,

A simple doubt?.

From Wikipedia:

1. The earth- "Blue Marble"- The "snapshot"—taken by astronauts on December 7, 1972- This picture is a circle, a PERFECT circle.

2. Figure of the earth- An oblate spheroid, may be very close to a sphere.

Why the difference. If the earth's shape is not a perfect sphere but very close to a sphere, there is no way that snapshot "Blue Marble" can be a perfect circle.

Any explanation for this difference?

A simple doubt?.

From Wikipedia:

1. The earth- "Blue Marble"- The "snapshot"—taken by astronauts on December 7, 1972- This picture is a circle, a PERFECT circle.

2. Figure of the earth- An oblate spheroid, may be very close to a sphere.

Why the difference. If the earth's shape is not a perfect sphere but very close to a sphere, there is no way that snapshot "Blue Marble" can be a perfect circle.

Any explanation for this difference?