If you ever need help within the program, click on the Question Mark button in the lower left edge (or press the F1 key), to open the Help window. This window gives you a list of shortcuts that will help you better navigate this program. You're now ready to start exploring Stellarium! First let's look around the screen. You are looking at a view of the sky, with the ground below it. You are facing South (see the red "S" on the ground at the center? - that means "South"), and you should be located in Nashville, indicated by "Earth, Nashville, 171 m" in the Information Bar at the bottom of the screen (the "171m" indicates Nashville's elevation above sea level). The time and date listed to the right in the Information Bar should match the local time (as long as your computer itself has the correct time!). If you're doing this assignment during the day, the sky should look blue, as you would expect! If you're doing it at night, the sky should look dark, and there would be stars (and perhaps planets and the Moon) visible (again, as you would expect!) Let's start navigating the program. The buttons on the two menu bars have icons that represent various functions of the program, and each opens a window that allows you to change the program's parameters. The most important button is the Sky and Viewing Options Window button, which has star and planet symbols on it. This button opens the View window, which has five sub-menus (unless you are using a different version of stellarium). Press the Sky and Viewing Options button to open the View menu. You can also open this menu by simply pressing the F4 key on a Windows PC. Q1) What are the names of the five sub-menus listed across the top of the View Window? You can click on any of these sub-menus at the top to display different functions of the software. Let's look at some of these sub-menus. Click on the submenu "Landscape". To the left, you will see a list of over a dozen different landscapes. Q2) What landscapes are available in Stellarium? (write down only three of them) and Q3) What happens when you click on the one that reads "Moon"? 2 Q4) Which Sky Cultures are listed in the Starlore sub-menu? (List only three of them!) and Q5) In which sub-menu do you find the Twinkle selection? Q6) In which sub-menu do you find the function that allows you to filter supernova remnants? Q7) One of the sub-menus is called "DSO". What does DSO stands for (in an astronomical context)? You might need to google this. The Sky sub-menu of the View window is one of the most important sub-menus in the whole program. This sub-menu controls what you will be able to see on screen in Stellarium. Let's take a look at it. This sub-menu is divided in three major sections: Stars, Sky, and Solar System Objects. In each section, the items have boxes or sliders next to them that can be moved or checked or unchecked with "x's".