Tokyo Photoelectric Meridian Circle

The Tokyo Photoelectric Meridian Circle (PMC) is a meridian circle that observes and records the positions of stars and planets, which are then reported in the PMC catalogs. == Meridian circle == The Tokyo Photoelectric Meridian Circle is a fully automated photoelectric meridian circle at the Mitaka campus of the National Astronomical Observatory of Japan (formerly of the Tokyo Astronomical Observatory) in Tokyo, Japan.

Source: Wikipedia — Tokyo Photoelectric Meridian Circle (CC BY-SA 4.0)