The seven horses of the Sun. The chariot of the Sun is nine thousand yojanas long and its shaft is eighteen-thousand yojanas long. The length of the axle is fifteen million seven lakhs yojanas. The wheel is secured to this axle. The entire wheel of 'Time' (कालचक्र) stuck fast in the undiminishing figure of 'year' with three naves of the wheel, five spokes and sixty rings. The chariot is drawn by seven horses. They are the seven Vedic metres with their theory. They are गायत्री , बृहती , उष्णिक् , जगती , त्रिष्टुप् , अनुष्टुप् and पङ्क्ति . (Viṣṇu Purāṇa, Aṃśa 2, Chapter 8) .