There is no single Seyfert galaxy. Seyfert galaxies are a type of active galaxy characterized by a bright, active nucleus. They are found throughout the universe at varying distances from Earth.

To answer your question, we need to know which specific Seyfert galaxy you're interested in. For example:

* NGC 1068: One of the closest and most studied Seyfert galaxies, located about 47 million light-years from Earth.

* M77 (NGC 1068): Another well-known Seyfert galaxy, also about 47 million light-years away.

* M81 (NGC 3031): This galaxy is also known to be a Seyfert, but it's much farther away at about 12 million light-years from Earth.

If you can provide the name of the specific Seyfert galaxy you're interested in, I can give you a more precise distance.