The gravitational force between the Sun and moon induces the precession in Earth's orbit, which is the major cause of the climate oscillation of Earth that has a period of 19,000 to 23,000 years.
Daya kegravitian antara Matahari dan Bulan mempengaruhi presesi dalam orbit Bumi, yaitu penyebab utama ayunan iklim Bumi yang durasinya 19.000 sampai 23.000 tahun.