The galactic anticenter is a theoretical point in the sky that lies directly opposite the center of the Milky Way galaxy. Because this point is relative, it will vary depending on the location of the observer; it is not an actual fixed point in space. Most of the time, this term refers to the anticenter from the point of view of an observer on Earth. Moreover, points within the sky are not confined to a finite area; in other words, two objects in different galaxies can both be in the galactic anticenter as long as they are in the direction opposite of the direction of galactic center (much like how the stars in a constellation may be completely unrelated despite appearing visually close to each other).
In terms of the galactic coordinate system, the galactic center in Sagittarius corresponds to a longitude of 0°, while the anticenter is located exactly at 180°. In the equatorial coordinate system, the anticenter is found at roughly R.A. 05h 46m, Dec. +28° 56'.
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