Nachi-Katsuura Observatory

The Nachi-Katsuura Observatory sits 10 meters above sea level on the southeastern coast of the Kii Peninsula, with views of celestial bodies across the Pacific Ocean. The facility houses telescopes that allow visitors to observe planets and deep-space objects during guided tours.

The facility began operations in 1992 as part of Japan's scientific infrastructure and received an International Astronomical Union code designation. This establishment marked the start of dedicated astronomical research at this coastal location.

The observatory hosts regular stargazing events and educational programs for nearby schools, bringing astronomy into the local community. These gatherings are part of how people here connect with the night sky and share knowledge about the cosmos.

Visitors can join guided tours where staff demonstrate how to use telescopes for observing planets and deep-space objects. It is best to arrive during evening or nighttime hours when the sky is darker and viewing conditions are at their best.

The observatory sits within Yoshino-Kumano National Park, known for its natural scenery and proximity to Japan's largest tuna fishing port. This unusual pairing brings together astronomical research and local fishing heritage in one coastal area.

Location: Nachikatsuura

Location: Wakayama Prefecture

Official opening: 1992

Elevation above the sea: 10 m

GPS coordinates: 33.61000,135.92472

Latest update: December 14, 2025 14:20