Alpha Centauri
Does Alpha Centauri A, or B, wobble on its axis. If it did that would mean there would be a possibility of planets around it, wouldn't it? ANSWER:>>>>
http://www.newton.dep.anl.gov/askasci/ast99/ast99503.htm

Alpha Centauri: Detailed Measures Taken of Closest Star System
Measuring the size of objects in space is so difficult that until late astronomers were uncertain of the precision of their estimates of the how large, or small, the stars closest to Earth were.
http://www.space.com/scienceastronomy/alpha_centauri_0303...

Alpha Centauri: MASS
What is the approximate mass of the star Alpha Centauri? ANSWER:>>>>
http://www.newton.dep.anl.gov/askasci/ast99/ast99097.htm

Alpha Centauri: The Closest Star System
The closest star system to the Sun is the Alpha Centauri system. Of the three stars in the system, the dimmest -- called Proxima Centauri -- is actually the nearest star....
http://antwrp.gsfc.nasa.gov/apod/ap960526.html

Asteroid
Asteroid Radar Research
http://echo.jpl.nasa.gov/

Asteroid Belt
So far, the largest asteroid found in the asteroid belt is as big as the state of Texas. It has been named Ceres
http://starchild.gsfc.nasa.gov/docs/StarChild/solar_syste...

Asteroid Belt
Several hundred thousand asteroids have been discovered and given provisional designations so far. Thousands more are discovered each year. There are undoubtedly hundreds of thousands more that are too small to be seen from the Earth. ..
http://seds.lpl.arizona.edu/nineplanets/nineplanets/aster...

Asteroids
Asteroids are small bodies that are believed to be left over from the beginning of the solar system 4.6 billion years ago. They are rocky objects with round or irregular shapes up to several hundred km across, but most are much smaller.
http://www.windows.ucar.edu/tour/link=/our_solar_system/a...

Asteroids
The plot (click on) shows the current location of the major planets (Mercury through Jupiter) and the minor planets that are in the inner region of the solar system
http://cfa-www.harvard.edu/iau/lists/InnerPlot.html

Asteroids
Now it's simple for you to learn about asteroids, all you have to do is point and click on the highlighted text, but you know that already.
http://www.edunet.ie/stlaur/asteroid.html