National Astronomical Observatory of JapanLocation 2-12, MizusawahoshigaokachoOshuIwate 023-0861Next Event Light-up in Green 2026_Japan - 08/03/2026 - 14/03/2026 - 6:00 pm - 8:00 pm Upcoming EventsLight-up in Green 2026_Japan - 08/03/2026 - 14/03/2026 - 6:00 pm - 8:00 pmItem posted February 25, 2026