Kawaguchi Science Museum

Kawaguchi Science Museum, also known as Science World, is a hands-on science centre in Kawaguchi, Saitama Prefecture, Japan, combining a planetarium and rooftop observatory with interactive exhibits for visitors of all ages.

About Kawaguchi Science Museum

Located within the Skip City complex at 3-chome-12-18 Kamiaoki, the museum brings together a planetarium and a rooftop observatory alongside hands-on exhibits, making it a popular stop for families and astronomy fans in Saitama.

Telescopes & research

The museum’s rooftop observatory gives visitors a chance to look through a telescope, complementing the planetarium shows that introduce the night sky to a wide audience.

Location & getting there

The museum sits in Kawaguchi, Saitama Prefecture, within Japan’s Kanto region. It is reachable via the JR Keihin-Tohoku Line, getting off at Kawaguchi or Nishi-Kawaguchi Station.

Visiting Kawaguchi Science Museum

The museum is open from 9:30 to 17:00, with admission until 16:30, and is closed on Mondays (or the following weekday if a Monday is a holiday) as well as from 29 December to 3 January. Visitors can call ahead on +81 48-262-8431 for current details.

See your named star from here

After a planetarium show, the rooftop observatory is a natural place to look for a star of your own. If you’ve named a star with Star Register, staff or fellow visitors can help you find its coordinates in the sky, or explore our star catalogue to see what else is up there.