The number of fictional sentient species in Andromeda varies by the work of fiction that imagines them.
The Andromeda Galaxy is approximately 220,000 light-years in diameter, which is equivalent to about 1,294,833,160,000,000 miles.
It is not known. The Andromeda Galaxy contains about a trillion stars, many of which certainly have planets, though we don't know how many. Many of the planets likely have moons. All told, there are likely several hundred billion to several trillion moons in the Andromeda Galaxy.
Astronomer's have not been able to count all the planets in the Andromeda Galaxy. The Andromeda Galaxy is home to one-trillion stars. The Andromeda Galaxy is expected to collide with the Milky Way in the next 4.5-billion years.
There are at least 27 known dwarf galaxies orbiting the Andromeda galaxy. These small galaxies are gravitationally bound to Andromeda and are much smaller in size and mass compared to the main galaxy.
The Milky Way galaxy and the Andromeda galaxy are approximately 2.5 million light-years apart. This makes Andromeda the closest spiral galaxy to our own Milky Way. Both galaxies are part of the Local Group of galaxies.
There are at least 150,000 sentient species in a fictionalized version of the Andromeda galaxy (a spiral galaxy 2.5 million light-years from Earth, and is 150,000 light-years in diameter, and contains 150 billion stars (each star is orbited by an average of 9 planets and 170 moons; as well as asteroids and nebulae)).
1,008,000.
201,600.
315,000.
1,260,000.
1,260,000.
26,460.
56,700.
12,600.
126,000.
1,890.
3,780.