Okayama · Bisei Town
Bortle 3 · Rural dark sky ｜ Elevation 420m ｜ SQM ~21.5 ｜ Best view South
Bisei Town is Asia’s first DarkSky International certified Dark Sky Community, and a landmark in Japan’s light-pollution-control history. The Bisei Astronomical Observatory anchors its community-scale dark-sky tourism.
🌌 Tonight the Milky Way core climbs to a shootable altitude around 21:07, sinks back near 02:27, and peaks around 22:57 at roughly 26° in the South.
Set your destination to Bisei, Ibara City, Okayama. Check the observatory schedule, night openings and transport before visiting.
Bisei Astronomical Observatory, public viewing programs and town facilities; many night programs run on set schedules.
Spring through autumn for Milky Way; plan around new moon and observatory opening nights.
See the nearby city's stargazing calendar
Bortle class and SQM are estimates for well-known sites, used to compare darkness — not on-site measurements.
Related tools: Taiwan Dark-Sky Map · Stargazing & Moon Viewing Score · Meteor Showers