In today's session Sebastian and I went over the apparent movement of the stars. For this we created an example to show more about why the stars appear to move. The example had a light source in the middle of a room and images on each wall. It is hard to see past the light source but if the light source is behind you, the image is clear. Depending on what you are in front of, the image you see is different. This explains why the constellations you see during the year are different, this is apparent movement. We also went over universe, galaxy, solar system and planet definitions.