Also known as
  • El sol,
  • The Sun,
  • Sol,
  • שמש
The Sun is the star at the center of the Solar System. The Earth and other matter (including other planet, asteroid, meteoroid, comet, and dust) orbit the Sun, which by itself accounts for about 99.8% of the Solar System's mass. Energy from the Sun, in the form of sunlight and heat, supports almost all life on Earth via photosynthesis, and drives the Earth's climate and weather. The surface composition of the Sun consists of hydrogen (about 74% of its mass, or 92% of its volume), helium (about 24-25% of mass, 7% of volume), and trace quantities of other elements, including Iron, Nickel, Oxygen, Silicon, Sulfur, Magnesium, Carbon, Neon, Calcium, and Chromium. The Sun has a spectral class of G2V. G2 means that it has a surface temperature of approximately 5,780 K, giving it a white color which, because of atmospheric scattering, appears yellow as seen from the surface of the Earth. This is a subtractive effect, as the preferential scattering of blue photons (causing the sky color)... full article at wikipedia

  Astronomy

Hipparcos ID
Constellation
Rotation Rate
Temperature
Radius
Mass
Luminosity
Metallicity Relative To Sol
Magnitude
Declination
Right Ascension
Distance
  • 0.0pc
Hipparcos Catalog Number
Spectral Type
Color Index
Absolute Magnitude
  • 4.83
Orbital Order
Periapsis
Aoapsis
Orbit Eccentricity
Orbital Period
Average Orbital Speed
Semi-major Axis
Inclination
Epoch

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Topic History

Created by Metaweb Oct 22, 2006
Last edited by quotationsbook 3 days ago

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