What is sun?

Sun

The Sun is the star at the center of the Solar System. It is almost perfectly spherical and consists of hot plasma interwoven with magnetic fields. It has a diameter of about 1,392,684 km, about 109 times that of Earth, and its mass (about 2×1030 kilograms, 330,000 times that of Earth) accounts for about 99.86% of the total mass of the Solar System. Chemically, about three quarters of the Sun's mass consists of hydrogen, while the rest is mostly helium. The remainder (1.69%, which nonetheless equals 5,628 times the mass of Earth) consists of heavier elements, including oxygen, carbon, neon and iron, among others.

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Famous quotes containing the word sun:

    Queen and huntress, chaste and fair,
    Now the sun is laid to sleep,
    Seated in thy silver chair,
    State in wonted manner keep:
    Hesperus entreats thy light,
    Goddess excellently bright.
    Ben Jonson (1572–1637)

    The Sun shone whole at intervals--/Then Half--then utter hid--/As if Himself were optional/And had Estates of Cloud/Sufficient to enfold Him/Eternally from view--
    Emily Dickinson (1831–1886)

    I’ve no time now, but believe me as surely as the moon will set and the sun will rise I shall kill you tomorrow night. I shall kill you even if you hide in the deepest cave of the earth. At ten o’clock tomorrow night, I shall kill you.
    R.C. Sherriff (1896–1975)