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.
This is a diagram that zooms out from the Earth's orbit to the nearest star system. It tries to show just how large the distance to the nearest star really is. Here is a map of all the known stars that lie within 20 light years plotted using the data provided below. Data and Catalogs. There are over 100 stars within 20 light years. This is a list of the known stars that lie within this distance.