 Zetagenenorm is an intermediate luminous supergiant, is also a classical Scythian variable. HIP 13044 came from outside our galaxy. It was part of a former dwarf galaxy that merged with the Milky Way between six and nine billion years ago. Kilira is a carbon star. It has used up most of its hydrogen fuel and is now fusing helium into carbon. Here we see the summer triangle, a giant triangle in the sky, composed of three bright stars – Vega, Altair, and Deneb. Deneb is a blue-white supergiant. It's one of the biggest white stars known, at 203 times the size of the Sun, and around 19 times more massive. Deneb's solar wind is blowing away material at a rate that results in its losing mass 100,000 times faster than our Sun. The star is very faint. It is made of almost purely hydrogen and helium, with only extremely small amounts of heavier elements. We estimate that the star is probably more than 13 billion years old. That would make it one of the oldest stars in the universe. MuCefi is a red supergiant star. In fact, it is one of the largest and most luminous stars known in the Milky Way. This star could fit a billion Suns into its volume.