The
sol in
solar system.
Here are some statistics for this important stellar body. See the Anatomy of the Sun for more intimate details!
- Age
- At least 4.5 billion years, in present state.
- Diameter
- 1.39 x 106 km
- Volume
- 1.41 x 1025 m3 (1.3 million times the volume of the Earth)
- Mass
- 1.99 x 1030 kg (or 333,000 times the weight of the Earth)
- Energy output
- 3.86 x 1033 ergs/second or 386 billion billion megawatts
- Chemical composition of photosphere (by weight, in percent)
-
Hydrogen - 73.46
Helium - 24.85
Oxygen - 0.77
Carbon - 0.29
Iron - 0.16
Neon - 0.12
Nitrogen - 0.09
Silicon - 0.07
Magnesium - 0.05
Sulfur - 0.01
-
Density (water=1)
-
- Mean density of entire Sun
- 1.41 g/cm3
- Interior (center of the Sun)
- 160 g/cm3
- Surface (photosphere)
- 10-9 g/cm3
- Chromosphere
- 10-12 g/cm3
- Low corona
- 10-16 g/cm3
- Temperature
- Interior (center)
- 15,000,000 K
- Surface (effective) of Sun
- 5800 K
- Sunspot umbra (typical)
- 4240 K
- Penumbra (typical)
- 5680 K
- Chromosphere
- 4300 to 50,000 K
- Corona
- 800,000 to 3,000,000 K
- Rotation (as seen from the Earth)
- Of solar equator
- 26.8 days
- At solar latitude 30 deg
- 28.2 days
- At solar latitude 60 deg
- 30.8 days
- At solar latitude 75 deg
- 31.8 days
Source:
http://solar-center.stanford.edu/vitalstats.html