5300 million light-years.
The COSMOS 1161898 galaxy (one of the galaxies in the COSMOS survey) is a barred spiral galaxy 5300 million light-years (redshift of 0.54) from Earth in the Sextans constellation, and is 90,000 light-years in diameter (almost the same size as the Milky Way), and contains about 100 billion stars (the same number of stars as the Milky Way). It emitted its light 5300 million years ago, when the universe was 8400 million years old.
Since COSMOS 1161898 is a barred spiral galaxy 5300 million light years from us, it will take 5300 million years for the message to reach its intended designation (and an additional 5300 million years for any reply from an alien civilization).
There are at least 100,000 sentient species in a fictionalized version of the COSMOS 1161898 galaxy (a barred spiral galaxy 5300 million light-years from Earth, and is 90,000 light-years in diameter, and contains 100 billion stars (each star is orbited by an average of 9 planets and 170 moons; as well as asteroids and nebulae)).
The COSMOS 1526561 galaxy (one of the galaxies in the COSMOS survey) is a spiral galaxy 7500 million light-years from Earth in the Sextans constellation, and is 100,000 light-years in diameter, and contains about 100 billion stars.
The COSMOS 2607238 galaxy (one of the galaxies in the COSMOS survey) is a barred spiral galaxy 6300 million light-years from Earth in the Sextans constellation, and is 100,000 light-years in diameter, and contains about 100 billion stars.
The COSMOS 397553 galaxy (one of the galaxies in the COSMOS survey) is a barred spiral galaxy 6000 million light-years (redshift of 0.66) from Earth in the Sextans constellation, and is 100,000 light-years in diameter (same size as the Milky Way), and contains about 100 billion stars (same number of stars as the Milky Way).
The COSMOS 1177059 galaxy (one of the galaxies in the COSMOS survey) is an elliptical galaxy 7700 million light-years (redshift of 0.97) from Earth in the Sextans constellation, and is 60,000 light-years in diameter (about 1.7 times smaller than the Milky Way), and contains about 40 billion stars (40 percent of the Milky Way's stars).
The COSMOS 786560 galaxy (one of the galaxies in the COSMOS survey) is a spiral galaxy 6000 million light-years (redshift of 0.66) from Earth in the Sextans constellation, and is 120,000 light-years in diameter (1.2 times larger than the Milky Way), and contains about 200 billion stars (200 percent of the Milky Way's stars).
The COSMOS 781155 galaxy (one of the galaxies in the COSMOS survey) is a spiral galaxy 7000 million light-years (redshift of 0.83) from Earth in the Sextans constellation, and is 120,000 light-years in diameter (1.2 times larger than the Milky Way), and contains about 200 billion stars (200 percent of the Milky Way's stars).
Earth's address in the cosmos is within the Solar System, located in the Orion Arm of the Milky Way galaxy, which is part of the Local Group of galaxies. The specific coordinates are approximately 26,000 light-years from the center of the Milky Way galaxy.
The Kubasik Galaxy does not exist in real life. The nearest galaxy to Earth, Andromeda is about 2.5 million light years away. The nearest dwarf galaxy, Canis Major Dwarf, is a mere 0.025 million light years away
There are at least 2 million galaxies in the COSMOS survey (with billions of stars, planets, and moons in each one; as well as asteroids and nebulae). Their light has taken 13 billion years to reach Earth.