Alpha+Centauri+II+2A


 * __Facts About Alpha Centauri__**


 * __Alpha Centauri__**

may offer terrestrial life conditions.
 * Special star- because its closest to the stellar system to the sun & it's one of the few places in the Milky Way Galaxy that


 * Its apart of the southern sky.


 * It is better known by its Bayer Designation other than the other two names Rigel Kentaurus & Toliman.


 * Rigel Kentaurus-- means "The Centaur's Foot."


 * Toliman-- means "The Vine Shoot."


 * The Alpha Centauri has three different types of stars the Alpha Centauri A, B, & C.

__**Alpha Centauri A**__

- Its like our sun

-The color is yellow

- Spectral type of G2

- 5-6 billion years old

__**Alpha Centauri B**__

- The color is orange

- Spectral type is K1

- It has a visible back ground

- 5-6 billion years old __**Alpha Centauri C**__

-It has a reddish glow

- Red dwarf orbiting the main two starts at immense distance

- Hardly visible

- Tiny

- Discovered in 1915

-Spectral type is M5

-It also is known as the Proxima Centauri

- 1 billion years old




 * Alpha Centauri's A & B are the brightest components they also can orbit each other in 80 years.


 * Alpha Centauri was formed earlier than our solar system meaning more than a thousand million years ago.


 * Once every eight years the sun like stars orbit the common centre of gravity.


 * A star must pass five test's in order to be considered a promising place for terrestrial life.


 * Alpha Centauri A, however passed all five...Alpha Centauri B passed all except one & Alpha Centauri C didn't pass any.


 * Test #1: Ensures a star's maturity & stability.**


 * Test #2: The star has to have the right spectral type.**


 * Test #3: A system must demonstrate stable conditions.**


 * Test #4: This is concerning the star's age.**


 * Test#5: This is to make sure the stars have enough heavy elements.**


 * Therefore this does conclude that Alpha Centauri is considered a promising star system regarding terrestrial planets possible life.