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.
Marc: That's right. Although it's very difficult to find out the temperature at great depths, the core may be between about 7,000 and 12,000 degrees Fahrenheit. To appreciate how hot that is, the surface of the Sun is about 10,000 degrees, so our planet's core might be hotter than the surface of a star!