1 To work in the Security and Maintenance window, you should be logged into an administrator account. 2  From the desktop window, right-click the Start button (the button with the Windows icon) from the bottom-left corner of the screen. 3  From the context menu that appears, click Control Panel.
Alpha Centauriâs surface temperature is a few degrees Kelvin less than our sun (that is, about 5770 k), but its greater diameter (about 25% more than the sun) and the overall larger surface area gives it a luminosity nearly 1.6 times that of our star.
Alpha Centauri is the nearest star system to the Sun, located at a distance of 4.37 light years or 1.34 parsecs from Earth. It is the brightest star in Centaurus constellation and the third brightest star in sky, only slightly brighter than Arcturus in Booetes boÃ¶tes constellation And vega In. lyralpha Centauri is a binary star system consisting of Alpha Centauri A and Alpha Centauri B. It is sometimes referred to as Alpha Centauri AB (Î± Cen AB).