Question

define sun?????????​

Answer 1

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The star that shines in the sky during the day and that gives the earth heat and light.

Answer 2

Answer:

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☘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:

☘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