Solar System
The Solar System is the gravitationally bound system of the Sun and the objects that orbit it, either directly or indirectly. Of the objects that orbit the Sun directly, the largest are the eight planets, with the remainder being smaller objects, such as the five dwarf planets and small Solar System bodies. Of the objects that orbit the Sun indirectly—the moons—two are larger than the smallest planet, Mercury.
Surya
Surya is one of the nine heavenly "planets" (Navagraha) in the zodiac system of Hindu astrology. Surya or Ravi is the basis of "Ravivara" / Bhanuvara, or Sunday, in the Hindu calendar. Major festivals and pilgrimages in reverence of Surya include Makara Sankranti, Pongal, Ratha Sapthami, Chath puja and Kumbha Mela.