If you hover the mouse cursor over the buttons, a short description of the button's purpose and keyboard shortcut will appear. We may tell Stellarium to change how fast time should pass, and even make time go backwards! So the first thing we shall do is to travel into the future! Let's take a look at the time control buttons on the right hand ride of the tool-bar. However, Stellarium's clock is not fixed to same time and date as the system clock, or indeed to the same speed. When Stellarium starts up, it sets its clock to the same time and date as the system clock. If you move the mouse over the status bar, it will move up to reveal a tool bar which gives quick control over the program. You can zoom with the mouse wheel or the page up/page down keys. You can drag with the mouse on the sky to look around or use the cursor keys. If the simulation time and observer location are such that it is night time, you will see stars, planets and the moon in the sky, all in the correct positions. The rest of the view is devoted to rendering a realistic scene including a panoramic langscape and the sky. This shows the current observer location, field of view (FOV), graphics performance in frames per second (FPS) and the current simulation date and time. At the bottom left of the screen, you can see the status bar.

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