Let's know about our king the Sun. Sun and Earth's distance is 150000000km Sun's mass is very big. Sun's greavity is so powerful that it can makes planets to turn the Sun. The sun's mass is 99.8% of whole solar system's mass. In morning, we can see bright sun over the sky. If sun doesn't exist, we can't live. Let's learn about Sun's characteristic.
1.Sun's orbit's characteristic
Sun turns the center of milkiway 0.2 billions day a once. Its orbital speed is 217km/s.
2.Sun's physical characteristic
Mass:1.9891×1030 kg(330000xEarth)
Mean diameter:1,392,684 km(200xEarth)
Volume:1.412×1018 km3
Surface Area:6.0877×1012 km
Average density:1.408×103 kg/m
Sidereal rotation period:25.05 days
Rotation period at pole:34.4days
3.Sun's photospheric composition
Hydrogen:73.46&
Helluim:24.85%
Oxygen:0.77%
Carbon:0.29%
Iron:0.16%
Neon:0.12%
Nitrogen:0.09%
Silicon:0.07%
Magnesuim:0.05%
Sulfur:0.04%
1.Sun's orbit's characteristic
Sun turns the center of milkiway 0.2 billions day a once. Its orbital speed is 217km/s.
2.Sun's physical characteristic
Mass:1.9891×1030 kg(330000xEarth)
Mean diameter:1,392,684 km(200xEarth)
Volume:1.412×1018 km3
Surface Area:6.0877×1012 km
Average density:1.408×103 kg/m
Sidereal rotation period:25.05 days
Rotation period at pole:34.4days
3.Sun's photospheric composition
Hydrogen:73.46&
Helluim:24.85%
Oxygen:0.77%
Carbon:0.29%
Iron:0.16%
Neon:0.12%
Nitrogen:0.09%
Silicon:0.07%
Magnesuim:0.05%
Sulfur:0.04%
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