Night Sky Alert
Tonight in Nagasaki, Japan · More in Japan →
36 OUT OF 100

MaybeNagasaki night sky · Sat, Oct 17, dark 18:39–5:32 GMT+9

  • Aurora unlikely. Tonight's forecast peaks at Kp 2.0. From here you'd usually need about Kp 9, which takes a rare, extreme storm.
  • Space station passes at 4:56, up to 27° high, moving W → NE. It looks like a bright, steady star that crosses the sky in a few minutes.
  • Moon 38% lit (Waxing Crescent), above the horizon for 36% of the dark hours.
  • Clouds: about 11% effective cover during dark hours, so mostly clear.

Updated 26 min ago. Times in Asia/Tokyo (GMT+9).

Clouds tonight
16:00clouds, % of sky6:00
Aurora reach
Kp 9+ needed
Magnetic latitude 27.5° N, too far from either auroral zone in all but the rarest storms. Tonight's forecast peak: Kp 2.0. Live map →
Moon
38% lit
Waxing Crescent. Up for 36% of dark hours.
Next meteor peak
Orionids
Peak night Oct 21–22 · Moon 82% lit

Next visible space station passes

When (GMT+9)HighestPath
Sun, Oct 18, 4:5327°W → NE

Visible passes only: station sunlit, your sky dark. Computed from CelesTrak orbital data.

Launches within view

LaunchWhen (GMT+9)Distance
H3-24 | Martian Moons eXploration (MMX)Tue, Oct 20, 4:41281 km
Ceres-1S | Unknown PayloadWed, Oct 21, 12:35991 km

Launches within 1,000 km in the coming days. Night and twilight launches are the ones to watch. Data: The Space Devs.

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Nearby

Nagasaki, Japan · 32.75°, 129.88° · population 409,118 (GeoNames). The score is an estimate; here's how it's made.