Sun
The Sun is a G-type main-sequence star. It contains almost 99.9 percent of all the mass in the Solar System.
| Sun | ||
|---|---|---|
| Astronomical symbol | ||
| Mean distance from Galactic Center |
km light years |
~2.5×1017 ~26,000 |
| Mean radius | km :E |
696,000 109 |
| Surface area | km2 :E |
6.0877×1012 11,990 |
| Volume | km3 :E |
1.4122×1018 1,300,000 |
| Mass | kg :E |
1.9891×1030 332,946 |
| Density | g/cm3 | 1.409 |
| Equatorial gravity | m/s2 | 274.0 |
| Escape velocity | km/s | 617.7 |
| Rotation period | days | 25.38 |
| Orbital period about Galactic Center | million years | 225–250 |
| Mean orbital speed | km/s | ~220 |
| Axial tilt to the ecliptic | deg. | 7.25 |
| Axial tilt to the galactic plane | deg. | 67.23 |
| Mean surface temperature | K | 5,778 |
| Mean coronal temperature | K | 1–2×106 |
| Photospheric composition | H, He, O, C, Fe, S | |
Read more about this topic: List Of Gravitationally Rounded Objects Of The Solar System
Famous quotes containing the word sun:
“Now is the sun upon the highmost hill
Of this day’s journey.”
—William Shakespeare (1564–1616)
“Lord, the Roman hyacinths are blooming in bowls and
The winter sun creeps by the snow hills;
The stubborn season has made stand.”
—T.S. (Thomas Stearns)
“If they had said that the sun or the moon had gone out of the heavens, it could not have struck me with the idea of a more awful and dreary blank in creation than the words: “Byron is dead!””
—Jane Welsh Carlyle (1801–1866)