Night Sky Alert
Star trails circling the celestial pole above a volcano, crossed by the straight line of a space station pass
Tonight in Hangzhou, China · More in China →
43 OUT OF 100

Maybe

Hangzhou night sky · Sat, Oct 17, dark 18:18–5:10 GMT+8
Clouds
26%average tonight
Moon
39%Waxing Crescent
Aurora
Kp 2.7need Kp 9+
Space station
3:5452° high · SW→NE
  • Aurora unlikely. Tonight's forecast peaks at Kp 2.7. From here you'd usually need about Kp 9, which takes a rare, extreme storm.
  • Space station passes at 3:54, up to 52° high, moving SW → NE. It looks like a bright, steady star that crosses the sky in a few minutes.
  • Moon 39% lit (Waxing Crescent), above the horizon for 36% of the dark hours.
  • Clouds: about 26% effective cover during dark hours.

Updated 16 min ago. Times in Asia/Shanghai (GMT+8).

Photo: Benedikt Markus · CC BY-SA 4.0

Clouds tonight
19:00clouds, % of sky6:00
Aurora reach
Kp 9+ needed
Magnetic latitude 25.8° N, too far from either auroral zone in all but the rarest storms. Tonight's forecast peak: Kp 2.7. Live map →
Moon
39% 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+8)HighestPath
Sun, Oct 18, 3:5152°SW → NE

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

Launches within view

LaunchWhen (GMT+8)Distance
Ceres-1S | Unknown PayloadWed, Oct 21, 11:35569 km

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

Free alerts

Get a heads-up when it's worth going out

One email when your sky is genuinely worth it: an aurora within reach, a launch you can see, a clear peak night. Nothing on ordinary nights. We'll confirm your address first, and you can unsubscribe in one click.

Nearby

Hangzhou, China · 30.29°, 120.16° · population 11,936,010 (GeoNames). The score is an estimate; here's how it's made.