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標題:
發問:
whats the different of the earth & the sun ( pls use point form & answer in English ) , thx
最佳解答:
1. Sun is star, Earth is planet 2. Nuclear fusion at core is the energy source of Sun. Hydrogen becomes Helium and huge amount of energy is released. There is no such nuclear process at Earth. Sun Statistics Mass (kg) 1.989e+30 Mass (Earth = 1) 332,830 Equatorial radius (km) 695,000 Equatorial radius (Earth = 1) 108.97 Mean density (gm/cm^3) 1.410 Rotational period (days) 25-36* Escape velocity (km/sec) 618.02 Luminosity (ergs/sec) 3.827e33 Magnitude (Vo) -26.8 Mean surface temperature 6,000°C Age (billion years) 4.5 Earth Statistics Mass (kg) 5.976e+24 Mass (Earth = 1) 1.0000e+00 Equatorial radius (km) 6,378.14 Equatorial radius (Earth = 1) 1.0000e+00 Mean density (gm/cm^3) 5.515 Mean distance from the Sun (km) 149,600,000 Mean distance from the Sun (Earth = 1) 1.0000 Rotational period (days) 0.99727 Rotational period (hours) 23.9345 Orbital period (days) 365.256 Mean orbital velocity (km/sec) 29.79 Orbital eccentricity 0.0167 Tilt of axis (degrees) 23.45 Orbital inclination (degrees) 0.000 Equatorial escape velocity (km/sec) 11.18 Equatorial surface gravity (m/sec^2) 9.78 Visual geometric albedo 0.37 Mean surface temperature 15°C Atmospheric pressure (bars) 1.013
其他解答:0D7DAC4E7B8CAAC5
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urgent ! i want to know different of the earth & the sun發問:
whats the different of the earth & the sun ( pls use point form & answer in English ) , thx
最佳解答:
1. Sun is star, Earth is planet 2. Nuclear fusion at core is the energy source of Sun. Hydrogen becomes Helium and huge amount of energy is released. There is no such nuclear process at Earth. Sun Statistics Mass (kg) 1.989e+30 Mass (Earth = 1) 332,830 Equatorial radius (km) 695,000 Equatorial radius (Earth = 1) 108.97 Mean density (gm/cm^3) 1.410 Rotational period (days) 25-36* Escape velocity (km/sec) 618.02 Luminosity (ergs/sec) 3.827e33 Magnitude (Vo) -26.8 Mean surface temperature 6,000°C Age (billion years) 4.5 Earth Statistics Mass (kg) 5.976e+24 Mass (Earth = 1) 1.0000e+00 Equatorial radius (km) 6,378.14 Equatorial radius (Earth = 1) 1.0000e+00 Mean density (gm/cm^3) 5.515 Mean distance from the Sun (km) 149,600,000 Mean distance from the Sun (Earth = 1) 1.0000 Rotational period (days) 0.99727 Rotational period (hours) 23.9345 Orbital period (days) 365.256 Mean orbital velocity (km/sec) 29.79 Orbital eccentricity 0.0167 Tilt of axis (degrees) 23.45 Orbital inclination (degrees) 0.000 Equatorial escape velocity (km/sec) 11.18 Equatorial surface gravity (m/sec^2) 9.78 Visual geometric albedo 0.37 Mean surface temperature 15°C Atmospheric pressure (bars) 1.013
其他解答:0D7DAC4E7B8CAAC5
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