Greetings! I am M&NCenarius. The M&N symbolizes my previous account (Moon&Nature), combined with a Warcraft, fictional character name, Cenarius. I am a nature-lover, and I am interested on science. I also have keen interest on entertainment and science-fiction. I am still new to Wikipedia... but I've known it since August 2005 . My first edit in Wikipedia was in August 16, 2005, in a Warcraft III-related topic. under a temporary IP address account. This Wikipedia, online encyclopedia is great and very interesting, indeed. Starting in November 2006, I'm going to make small edits to Wikipedia, such as removing vandalisms, correcting spelling mistakes I could find, I'll only make an article if its necessary. If I make a mistake on any article, please correct it. I would really appreciate it.
A star is a massive, compact body of plasma in outer space that is held together by its own gravity and is sufficiently massive to sustain nuclear fusion in a very dense, hot core region. This fusion of atomic nuclei generates the energy that is continuously radiated from the outer layers of the star during much of its life span. Astronomers can determine many of the properties of a star by observing its spectrum and luminosity. Individual stars differ in their total mass, chemical composition, and age. The total mass of a star is the principal determinant in its evolution and eventual fate. Other characteristics of a star that are determined by its evolutionary history include the diameter, rotation, movement and temperature. A plot of the star's temperature against luminosity, known as a Hertzsprung-Russell diagram, allows the current age and evolutionary state of the star to be determined. Binary and multi-star systems consist of two or more stars that are gravitationally bound, and generally move around each other in stable orbits. When two such stars have a relatively close orbit, their gravitational interaction can have a significant impact on their evolution.
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