Andromeda Galaxy and Milky Way
Current Distance to Andromeda Galaxy: approximately 2.537 million light-years (0.78 megaparsecs)
Andromeda's Speed Toward Milky Way: approximately 110 km/s (about 68.4 mi/s)
Future Collision: Andromeda is expected to collide with the Milky Way in about 4.5 billion years.
Size and Mass: Andromeda is the largest galaxy in the Local Group, containing approximately 1 trillion stars.
Motion Direction: Andromeda is moving toward the Milky Way due to gravitational interaction, but is also affected by the universe's expansion.
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