Guide
The Akashi City Astronomical Science Museum, located in Akashi City, Hyogo Prefecture, is a science center centered around the themes of "Time and Space." Its most distinctive feature is its location directly on the 135° East longitude line, the Japan Standard Time (JST) meridian. The museum's landmark is a 56-meter-tall tower clock with a 40-meter observation deck, serving as a recognizable symbol of Akashi. Through its planetarium, astronomical observation facilities, and diverse exhibits, visitors can delve into the mechanics of the universe and the fascinating history of time.
Opened in 1960, the museum is recognized as one of the earliest astronomical science museums in Japan. Throughout its history, the building has faced challenges, including damage during the 1995 Great Hanshin-Awaji Earthquake, leading to a grand reopening in 1998. The iconic tower clock was a gift from Seiko Holdings; the current third-generation clock continues the legacy. While the previous two generations of the clock famously stopped at the exact moment of the 1995 earthquake, the current clock has been restored with modern LED technology to keep precise time. The building itself serves as a significant cultural icon for the local community.
The museum features extensive displays regarding the solar system and various cosmic phenomena. A highlight is the planetarium, which occasionally hosts unique programs using a combination of traditional manual projectors and modern auxiliary systems. On the 16th floor, the astronomical observation room houses a 40cm-aperture reflecting telescope. The museum hosts stargazing events approximately once a month, offering a rare opportunity to observe celestial bodies directly. Additionally, the museum features exhibits centered on "Time," including the marker for the Japan Standard Time Meridian and various historical documents related to clocks and timekeeping.
While astronomical observation is primarily a nighttime activity, the museum holds special stargazing sessions about once a month. If you plan to attend these sessions, it is essential to check the nighttime schedule in advance. Depending on the season, the museum may host special events or exhibits tailored to specific celestial phenomena. Since planetarium programs are also held during the daytime, the museum is an easy addition to any daytime sightseeing itinerary. Please note that a major renewal/reopening is scheduled for July 30, 2026, promising even more advanced and engaging exhibits.
Beyond the star projections in the planetarium, the museum offers hands-on learning through astronomical observation programs. In the past, the museum has even hosted unique events like the "Deep Sleep Planetarium" focused on relaxation. In the exhibition halls, you can learn how humanity has measured time through displays of clocks, calendars, and various methods of time expression. Using the telescope for observation provides a profound way to deepen your understanding of the cosmos.
The area around the museum is rich with culture and nature. Nearby spots include Hitomaruyama Park, the historic Kakimoto Shrine, and Gessho-ji Temple. For food lovers, the nearby Akashi Station area features the "Fish Market Street" (Uonotana Shotengai), where you can enjoy fresh local seafood. A great way to visit is to combine a scientific learning experience at the museum with a stroll and a delicious meal in the surrounding neighborhood.
If you are participating in a nighttime stargazing event, we recommend bringing a jacket or warm clothing to protect against temperature drops. Inside the exhibition areas, please check local signage regarding photography restrictions. Payments can be made via cash, credit cards, or transportation IC cards, though policies may vary by event; checking in advance is advised. For English-language support, please refer to the official website or onsite signage. For accessibility, please check the official website for information regarding wheelchair access and facility-specific features.