Tokyo is at 35.7°N — similar to Los Angeles — giving excellent 70° ISS passes. The main challenge is Bortle 9 sky glow: Tokyo is one of the most light-polluted cities on Earth. But the ISS at magnitude −4 and Tiangong punch through even city glow. Japan has a strong astronomical culture and passes over Tokyo generate significant social media interest.
Passes run SW to SE across the sky. Best viewing: October–April. ISS max elevation: 70°. Dark sky access: Mount Takao (~50km west) or Okutama (~70km) for moderate darkness; Izu Peninsula for proper dark skies.
🛰 SEE SATELLITES OVER TOKYO NOWThe ISS is visible from Tokyo during twilight — 30–60 minutes after sunset or before sunrise. At 35.7°N you get passes up to 70° elevation several times per week. Use OrbitalNodes for exact JST times and compass directions.
The ISS (magnitude −4), Tiangong, Hubble, and Starlink trains are all visible. Tokyo's low latitude compared to European cities gives excellent access to equatorial satellites as well as ISS passes.
The ISS and Tiangong yes — both cut through Tokyo's Bortle 9 sky glow at −4 and +1.5 magnitude. For Starlink trains, BlueBirds, or Hubble you need to get to the suburbs or to Mount Takao (~50km west).
October through April. The June–September monsoon brings persistent cloud. Autumn is excellent: dry clear air, Fuji visible on the western horizon. December–February is coldest but clearest.
Mount Takao (Takao-san) is a 50km train ride from Shinjuku and offers Bortle 5 skies. Okutama (~70km) is darker still. The Izu Peninsula south of Tokyo offers proper dark skies and Pacific Ocean horizons.
Starlink trains from Vandenberg and Canaveral both have good geometry from Tokyo. Japan's position on the Pacific Rim gives excellent views of passes coming off the ocean to the west.
Mount Fuji visible on clear nights provides a spectacular foreground for satellite photography. The contrast of Tokyo's neon density against a bright ISS pass is visually striking.
Yes for the ISS and Tiangong — both bright enough to see from Shinjuku or Shibuya. Starlink trains need darker conditions — get to the suburbs or head to Mount Takao.
OrbitalSolar.ai has full Earendil-1 pass predictions for Tokyo. See Tokyo pass guide →