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Nishi-Harima Observatory

Japan · Asia
✦ 35.0254, 134.3356

Satellite imagery: Esri, Maxar, Earthstar Geographics

About this observatory

Nishi-Harima Astronomical Observatory sits on top of Mount Onade in Sayo Town, Japan, and is home to the largest optical telescope in the country.

About Nishi-Harima Astronomical Observatory

Known as NHAO, the observatory has operated as both a research facility and a public observatory under the University of Hyogo since 2012.

Telescopes & research

Its flagship instrument is NAYUTA, a Ritchey-Chrétien telescope with a 2-metre primary mirror, the largest telescope of its kind in Japan. NAYUTA is supported by an optical long-slit spectrograph and a near-infrared imager, giving the observatory a broad range of research capability.

Location & getting there

The observatory is located on the summit of Mount Onade in Sayo Town, in Japan's Hyogo Prefecture.

Visiting Nishi-Harima Astronomical Observatory

As a public observatory as well as a research site, NHAO welcomes visitors; check its official website for current opening hours and any tour or stargazing session details before travelling.

See your named star from here

A telescope the size of NAYUTA can resolve targets far beyond what's needed to find a single named star, but the principle is the same: right ascension and declination point the way. Look up your star's coordinates in our catalogue, or see our packages to name one.

Opening hours

Opening hours and public-visit programs vary by season. Check Google Maps for current times before you travel.

Frequently asked questions
On Mount Onade in Sayo Town, Hyogo Prefecture, Japan.
NAYUTA, a 2-metre Ritchey-Chrétien telescope, the largest of its kind in Japan.
The University of Hyogo, since 2012.
Yes, it operates as a public observatory; check its official website for current opening hours.
Location
Nearby observatories
Nishi-Harima Observatory, Sayo Town, Japan | Star-Register.eu