Tae unnerstaund axial tilt, we employ the richt-hand rule. When the fingers o the richt hand are curled aroond in the direction o the planet's rotation, the thumb pynts in the direction o the north pole.

In astronomy, axial tilt, kent tae astronomers as obliquity, is the angle atween an object's rotational axis an its orbital axis, or, equivalently, the angle atween its equatorial plane an orbital plane.[1] It differs frae orbital inclination.


  1. U.S. Naval Observatory Nautical Almanac Office (1992). P. Kenneth Seidelmann (ed.). Explanatory Supplement to the Astronomical Almanac. University Science Books. p. 733. ISBN 0-935702-68-7.