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.
Mercury has a huge range in temperatures. Its surface ranges in  temperature from -270Â°F to 800Â°F (-168Â°C to 427Â°C).ercury's nearness to the Sun, lack of atmosphere, and slow rotation combine to raise the daylight side temperature up to 430Â°C (806Â°F). The side of the planet facing away from the Sun becomes incredibly cold, as low as -173Â°C (-280Â°F).