M32 - LE GENTIL

Messier 32 (NGC 221) is a compact elliptical galaxy and one of the closest satellite companions of the Andromeda Galaxy (M31), located approximately 2.49 million light-years from Earth in the constellation Andromeda. It is a dwarf elliptical galaxy containing roughly 3 billion stars within a diameter of only about 6,500 light-years, making it tiny compared to its giant neighbor. M32 appears superimposed on the southern edge of M31's disk when viewed from Earth, and the two are easily visible in the same telescopic field of view. The galaxy was discovered by Guillaume Le Gentil in 1749 and was the first elliptical galaxy ever identified, though this classification would not exist for nearly two centuries. Despite its small size, M32 is remarkably dense, with a very compact and luminous core that is among the brightest of any known galaxy per unit volume. Hubble Space Telescope observations revealed that M32's nucleus contains a supermassive black hole with a mass of 2.5 to 5 million solar masses, comparable to the black hole at the center of our own Milky Way despite M32 being vastly smaller. Astronomers believe that M32 was once a much larger galaxy that has been stripped of its outer stars and gas through tidal interactions with M31 over billions of years. Some models suggest it may have originally been a normal spiral or intermediate-mass elliptical galaxy before these encounters stripped away most of its mass. Through a telescope, M32 appears as a small, bright, round fuzzy spot immediately adjacent to M31's disk. Even modest telescopes of 3 to 4 inches show it clearly, though no structure is visible in amateur instruments.

A compact dwarf elliptical galaxy containing about 3 billion stars within 6,500 light-years diameter, at a distance of 2.49 million light-years.