What is at the center of the Andromeda Galaxy?

At the center of the Andromeda galaxy lies a compact region of stars. The necleus consists of two concentrations of stars known as P1 and P2 with P1 being the brighter concentration. The dimmer P2 falls at the true center of the galaxy and contains a black hole with a mass of 3–5 x 10^7 M☉. read more

The Andromeda Galaxy, spanning approximately 220,000 light years, is the largest galaxy in our Local Group, which is also home to the Triangulum Galaxy and other minor galaxies. The Andromeda Galaxy's mass is estimated to be around 1.76 times that of the Milky Way Galaxy (~0.8-1.5 × 10 12 solar masses vs the Milky Way's 8.5 × 10 11 solar masses). read more

Galaxy collisions are a normal part of the universe's evolution. In fact, both Andromeda and the Milky Way bear signs of having already crashed into other galaxies. Andromeda boasts a large ring of dust in its center, giving it an interesting shape. read more