UDF 2457 is the Hubble Ultra Deep Field (UDF) identifier for a red dwarf star calculated to be about 59,000 light-years (18 kiloparsecs) from Earth with a very dim apparent magnitude of 25. The Milky Way galaxy is about 100,000 light-years in diameter, and the Sun is about 25,000 light-years from the Galactic Center.
UDF 2457 is the Hubble Ultra Deep Field (UDF) identifier for a red dwarf star calculated to be about 59,000 light-years (18 kiloparsecs) from Earth with a very dim apparent magnitude of 25. The Milky Way galaxy is about 100,000 light-years in diameter, and the Sun is about 25,000 light-years from the Galactic Center.
Source: Wikipedia "UDF 2457" · CC BY-SA 4.0
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