Question

How do you find a planet's obliquity?

Answer 1

$\huge\mathfrak{Answer}$

⭐At an obliquity of 0 degrees, the two axes point in the same direction,

i.e., the rotational axis is perpendicular to the orbital plane. Earth's obliquity oscillates between 22.1 and 24.5 degrees on a 41,000-year cycle

⭐ Earth's mean obliquity is currently 23°26′12.4″ (or 23.43679°) and decreasing.