Ōizumi Observatory

Ōizumi Observatory is an astronomical facility in Gunma with multiple telescopes and research facilities positioned on elevated terrain. The installation contains various observation instruments for studying the night sky and offers both daytime programs and evening viewing sessions for visitors.

The facility was founded in 1990 and became internationally recognized through the discovery of over 1,200 minor asteroids. These achievements established it as an important center for astronomical research in the region.

The observatory runs exhibitions and education programs that introduce visitors to astronomy and space science. Local school groups visit regularly to observe the sky and discover more about stars and planets through the telescopes.

Visitors should prepare for different operating hours depending on the season, with daytime programs in the morning and observation sessions in the evening. It is wise to check in advance what activities are offered on a specific day, as weather conditions can affect sky viewing.

The facility uses a large reflector telescope for advanced research and is registered under a special identification code in the international astronomy community. This registration allows astronomers worldwide to coordinate their observations and discoveries with the facility.

Location: Oizumi

Location: Gunma Prefecture

Official opening: 1990

Elevation above the sea: 38 m

GPS coordinates: 36.25050,139.41700

Latest update: December 14, 2025 14:20