Question

define sun?????????​

Answer 1

Explanation:

the star around which the earth moves and that provides light and heat for the earth, is called sun.

Answer 2

Answer:

☘Answer

• The Sun is the star at the center of the Solar System. It is a nearly perfect sphere of hot plasma, heated to incandescence by nuclear fusion reactions in its core, radiating the energy mainly as light and infrared radiation. It is by far the most important source of energy for life on Earth.

Explanation:

☘Some Facts About Sun

• Names: Sun, Sol /ˈsɒl/, Helios /ˈhiːliəs/

• Escape velocity (from the surface): 617.7 km/s; 55 × Earth

• Mean radiance (Isol): 2.009×107 W·m−2·sr−1

• Equatorial surface gravity: 274 m/s2; 28 × Earth

• Center density (modeled): 162.2 g/cm3; 12.4 × Earth

• Luminosity (Lsol): 3.828×1026 W; ≈ 3.75×1028 lm; ≈ 98 lm/W efficacy