There is no single star called "alpha" - alpha is just a prefix for a star in each constellation - often the brightest one. Thus, there is Alpha Centauri, Alpha Cruxis, Alpha Canis Majoris, etc. - basically one for each of the 88 constellations.
Alpha Centauri is a binary star system with two stars ("A" and "B") nearly the same mass as the sun. Alpha Centuri A is 1.1 times the mass of the sun (bigger), while Alpha Centuri B is 0.9 times the mass of the sun (smaller).
Proxima Centauri Alpha Centauri A Alpha Centauri B
Alpha-Centauri Distance from Sun/Earth of alphaa-Centauri from the Earth is now reckoned at 4.396 light-years or 4.159×1013 km.) It is the same stella type as our Sun.
Alpha Centauri A
The luminosity of Spica is 12100 times that of the sun.
Alpha Centauri does not orbit the sun.
Alpha Centauri is a binary star system with two stars ("A" and "B") nearly the same mass as the sun. Alpha Centuri A is 1.1 times the mass of the sun (bigger), while Alpha Centuri B is 0.9 times the mass of the sun (smaller).
The closest star system to our Sun is Alpha Centauri, which consists of three stars: Alpha Centauri A, Alpha Centauri B, and Proxima Centauri. Proxima Centauri is the closest to the Sun at a distance of about 4.24 light-years.
technically the Sun Alpha Proxima is the closest star.If you got into a rocket it would take about 50,000 years to get there.
Proxima Centauri Alpha Centauri A Alpha Centauri B
Alpha Centari is the nearest star to the Solar System's Sun. Alpha Centari is thought to be in the order of at least 4 to 7 billion years old. The Sun's age is estimated to be at the low end 4.6, and thus likely to be much younger. Another difference is that Alpha Centari is really a binary star system, while the Sun is the only star in the Solar System.
Alpha Centauri A
sun, proxima centauri,alpha centauriA,alpha centauriB,bernard's,wolf359,lalande siriusA
Alpha Centauri is as luminosity is 1.6 times that of the sun because it fuses hydrogen and helium in its core at a higher rate.
Alpha Centauri is a binary star system, commonly known as Alpha Centauri ABAlpha Centauri A is about the same size and age as our Sun with a spectral type of G2VAlpha Centauri B is about 14% smaller that our Sun and a lot cooler having a spectral type of K1VThere is a third star, not surprisingly called Alpha Centauri C or Proxima Centauri which is the closest star to Earth.See related link for more information.
No. The sun orbits the center of the galaxy, not any star. Alpha Centauri just happens to be the nearest star system to our own.
The nearest star to Earth is Proxima Centauri (Alpha Centauri C).