In astronomy, (axial tilt, or obliquity) is the angle between Earth’s rotational axis and a line perpendicular to its orbital plane around the Sun.
Think of it this way: Earth doesn’t spin perfectly upright like a Ferris wheel. Instead, it leans slightly — like a spinning top that’s been gently pushed. earth tilt definition
Earth’s axial tilt (also called obliquity ) is the angle between our planet’s rotational axis and its orbital plane around the Sun. In astronomy, (axial tilt, or obliquity) is the
23.5 degrees.