On the lateral surface of the human brain, the central sulcus separates the frontal lobe from the parietal lobe. The lateral sulcus separates the frontal lobe from the temporal lobe. The frontal lobe bottom can be divided into a lateral, polar, orbital (above the orbit; also called basal or ventral), and medial part.
The age of an individual star can vary; they were all made at different times and have different life spans. Stars can range from a few million to a several billion years old. The oldest star yet discovered, HE 1523-0901, is an estimated 13.2 billion years old.
To explain this problem further, consider an exploding star (supernova) at, say, an accurately measured 100,000 light-years away. Remember we are using this explanation in a 10,000-year-old universe. As the astronomer on Earth watches this exploding star, he is not just receiving a beam of light.