User:Dan Nessett/Sandboxes/Sandbox 6

From Citizendium
< User:Dan Nessett‎ | Sandboxes
Revision as of 12:17, 17 May 2011 by imported>Dan Nessett
Jump to navigation Jump to search

Test timestamp Dan Nessett 18:46, 16 May 2011 (UTC)

The Sun is the dwarf star[1] at the center of the Solar System. There are eight major planets and other celestial bodies orbiting it.[2] It is extremely hot, with surface temperatures in excess of 6,000 K and a central core temperature of about 15,700,000 K.[3] Since the Sun is about 150,000,000 kilometers away,[1] only a very small amount of its heat and light reach the Earth. By contrast, the Earth's Moon is very much smaller and very much colder.[4]

References

  1. 1.0 1.1 Markus J Aschwanden (2007). “Chapter 4: The Sun”, Lucy-Ann McFadden, Paul Robert Weissman, Torrence V. Johnson, editors: Encyclopedia of the solar system, 2nd Edition. Academic Press, pp. 71 ff. ISBN 0120885891. 
  2. Paul R Weissman (2007). “Chapter 1: The solar system and its place in the galaxy”, Lucy-Ann McFadden, Paul Robert Weissman, Torrence V. Johnson, editors: Encyclopedia of the solar system, 2nd Edition. Academic Press, pp. 3 ff. ISBN 0120885891. 
  3. Markus J Aschwanden (2007). “Table 1: Basic physical properties of the sun”, Lucy-Ann McFadden, Paul Robert Weissman, Torrence V. Johnson, editors: Encyclopedia of the solar system, 2nd Edition. Academic Press, p. 72. ISBN 0120885891. 
  4. Ashwin R. Vasavadaa, David A. Paige and Stephen E. Wood (October 1999). "Near-Surface Temperatures on Mercury and the Moon and the Stability of Polar Ice Deposits". Icarus 141 (2): pp. 179-193. DOI:10.1006/icar.1999.6175. Research Blogging.