How many Milky Way-sized galaxies can fit between us and Andromeda? remember no absurd answers
Answers
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25
we could fit about 25 Milky Way sized galaxies in the space between us and the Andromeda Galaxy
(approx)
Answer:
This is the relative size in the sky of the Andromeda galaxy and the Moon. If our eyes were sufficiently sensitive to low light, the Andromeda galaxy would appear to be about 15 times larger than the moon in area.
If you imagined that spiral galaxies were about the same size as CDs, then in our neighbourhood they would typically only be a couple of metres apart, and an average room would contain dozens of them. Compared to relative distances between planets in a solar system, or the relative distance between stars, galaxies are very densely packed.
But to return directly to your question, the Milky Way has a diameter of about 100,000 light years, Andromeda is about 2.5 million light years away, so we could fit about 25 Milky Way sized galaxies in the space between us and the Andromeda Galaxy.