Figure 1. Infrared image of a region about 900 light-years wide in the direction of the Galactic Center. Image credit: NASA/JPL-Caltech/S. Stolovy (Spitzer Science Center/ Caltech).
Figure 2. View of the galactic anticenter in gamma rays. Image: Compton Gamma Ray Observatory. Credit: NASA.
The galactic center is the center of the Milky Way Galaxy (see Figure 1)or of any other galaxy. It is the point about which the disk of a spiral galaxy rotates and it lies within the galactic nucleus.
The galactic anticenter is the point in the galactic plane that lies directly opposite the galactic center (see Figure 2). It lies in the constellation Auriga at approximately R.A. 05h 46m, Dec. +28° 56'; the nearest bright star to it is Alnath in Taurus.