ORBITAL 轨道桥
UTC --:--:--

Cities / China

Hangzhou 杭州

30.27°N, 120.16°E · Asia/Shanghai · all times below are local

At 30.3°N the station can pass close to overhead; this week's highest pass reaches 80° to the south-south-west and the sky stays properly dark for 10.2 hours.

orbits & twilight computed 2026-10-29 21:16 UTC FRESH · 37 min ago

The sky is properly dark from 18:40 to 04:52 (10.2 hours); Tiangong makes its next visible pass at 18:04, reaching 11° to the north; Mars is the highest planet at 64° to the east-south-east, around 05:10; the Moon is 82% lit (Waning gibbous).

Dark window
10.2h
sun below −18°
Next pass
18:04
Tiangong · N · 11°
Highest pass
80°
SSW
Moon lit
82%
87.4° peak
Satellite passes — next 14 days ISS · Tiangong · Hubble · above 10° under a dark sky
TiangongFri 30 Oct18:04–18:12 (8 min)11° NNW → ENE
HubbleFri 30 Oct18:33–18:45 (12 min)64° SSEW → E
TiangongFri 30 Oct19:41–19:50 (9 min)19° NNENW → E
HubbleFri 30 Oct20:13–20:24 (11 min)52° SW → ESE
TiangongFri 30 Oct21:18–21:28 (10 min)80° SSWWNW → SE
HubbleFri 30 Oct21:53–22:03 (10 min)21° SSWW → SE
ISSFri 30 Oct22:23–22:33 (10 min)78° SESW → NE
ISSSat 31 Oct00:01–00:09 (8 min)10° NWW → NNE
HubbleSat 31 Oct18:00–18:12 (12 min)63° SSWW → E
TiangongSat 31 Oct18:41–18:50 (8 min)14° NNENW → ENE
HubbleSat 31 Oct19:40–19:51 (12 min)53° SSWW → ESE
TiangongSat 31 Oct20:18–20:28 (10 min)49° NNENW → ESE
HubbleSat 31 Oct21:20–21:30 (10 min)22° SSWW → SE
ISSSat 31 Oct21:35–21:45 (10 min)36° SESSW → NE
TiangongSat 31 Oct21:55–22:04 (9 min)17° SWWNW → SSE
ISSSat 31 Oct23:13–23:22 (9 min)16° NNWW → NNE
TiangongSun 01 Nov17:41–17:50 (8 min)12° NNW → ENE
HubbleSun 01 Nov19:07–19:18 (11 min)54° SW → ESE
TiangongSun 01 Nov19:18–19:28 (10 min)28° NNENW → E
HubbleSun 01 Nov20:46–20:57 (10 min)23° SSWW → SE
ISSSun 01 Nov20:48–20:57 (9 min)19° SES → ENE
TiangongSun 01 Nov20:55–21:05 (10 min)35° SWWNW → SE
ISSSun 01 Nov22:25–22:34 (10 min)27° NWWSW → NNE
ISSMon 02 Nov04:58–05:08 (10 min)21° NENNW → ESE
TiangongMon 02 Nov18:18–18:27 (9 min)19° NNENW → E
HubbleMon 02 Nov18:33–18:45 (12 min)54° SW → ESE
TiangongMon 02 Nov19:55–20:05 (10 min)76° WSWWNW → SE
HubbleMon 02 Nov20:13–20:24 (10 min)23° SSWW → SE
ISSMon 02 Nov21:37–21:47 (10 min)50° NWSW → NE
ISSTue 03 Nov04:11–04:19 (8 min)13° NNENNW → E
HubbleTue 03 Nov18:00–18:11 (11 min)56° SSWW → ESE
TiangongTue 03 Nov18:55–19:05 (10 min)48° NNW → ESE
HubbleTue 03 Nov19:40–19:50 (10 min)24° SSWW → SE
ISSTue 03 Nov20:49–20:59 (10 min)78° SESW → NE
ISSTue 03 Nov22:27–22:36 (8 min)10° NWW → NNE
ISSWed 04 Nov04:59–05:10 (10 min)69° NNENW → SE

Tonight's timelineHangzhou · 17:16 → 06:10

Interactive plan →
Moon87° NW
Mars64° ESE
Saturn61° S
Jupiter58° N
Venusbelow 10°
Mercurybelow 10°
17:1619:5122:2601:0103:3506:10
Best targetshighest first
01Mars02:10–05:1064° ESEup 00:58–06:10
02Saturn18:10–02:1061° Sup 17:16–03:22
03Jupiter02:40–05:1058° Nup 01:28–06:10

At 82% illuminated the Moon is the brightest thing in the sky tonight and will wash out fainter targets while it is up. Look for the planets anyway — they cut through moonlight better than almost anything else.

How passes work

We track three objects bright enough to be worth going outside for: the ISS, China's Tiangong station and the Hubble Space Telescope. Each orbits at roughly 7.5 km/s and comes round every 90–95 minutes, but a pass only counts as visible when the object is sunlit while your sky is dark — which is why they cluster in the two hours after sunset and before sunrise.

Elevation is the angle above your horizon. 10° is easy to spot if you know where to look; 45° is unmistakable — brighter than any star, moving like an aircraft that makes no sound. The last column tells you where to look first and where it will disappear.

Hubble is far fainter than the two stations: treat it as a dark-sky target for people who already know the sky, not a first sighting.

Positions from SGP4 propagation of the current Celestrak TLEs, checked against your coordinates; accuracy a few kilometres, which for “is it over my head” is plenty. A stale TLE drifts by seconds, not by orbits.

Nearby citiesclosest by distance, each recomputed for its own coordinates

All 170 cities →
2026-10-30 · 8 次
18:04TiangongNW → ENE · 8.5 分钟11° N
18:33HubbleW → E · 11.5 分钟64° SSE
19:41TiangongNW → E · 9 分钟19° NNE
20:13HubbleW → ESE · 11 分钟52° S
21:18TiangongWNW → SE · 10 分钟80° SSW
21:53HubbleW → SE · 10.5 分钟21° SSW
22:23ISSSW → NE · 10 分钟78° SE
00:01ISSW → NNE · 8.5 分钟10° NW
2026-10-31 · 8 次
18:00HubbleW → E · 11.5 分钟63° SSW
18:41TiangongNW → ENE · 8.5 分钟14° NNE
19:40HubbleW → ESE · 11.5 分钟53° SSW
20:18TiangongNW → ESE · 10 分钟49° NNE
21:20HubbleW → SE · 10 分钟22° SSW
21:35ISSSSW → NE · 10 分钟36° SE
21:55TiangongWNW → SSE · 9 分钟17° SW
23:13ISSW → NNE · 9 分钟16° NNW
2026-11-01 · 8 次
17:41TiangongNW → ENE · 8.5 分钟12° N
19:07HubbleW → ESE · 11 分钟54° S
19:18TiangongNW → E · 9.5 分钟28° NNE
20:46HubbleW → SE · 10.5 分钟23° SSW
20:48ISSS → ENE · 9 分钟19° SE
20:55TiangongWNW → SE · 10 分钟35° SW
22:25ISSWSW → NNE · 9.5 分钟27° NW
04:58ISSNNW → ESE · 10 分钟21° NE
2026-11-02 · 6 次
18:18TiangongNW → E · 9 分钟19° NNE
18:33HubbleW → ESE · 11.5 分钟54° S
19:55TiangongWNW → SE · 10 分钟76° WSW
20:13HubbleW → SE · 10.5 分钟23° SSW
21:37ISSSW → NE · 10 分钟50° NW
04:11ISSNNW → E · 8.5 分钟13° NNE
2026-11-03 · 6 次
18:00HubbleW → ESE · 11 分钟56° SSW
18:55TiangongNW → ESE · 9.5 分钟48° N
19:40HubbleW → SE · 10.5 分钟24° SSW
20:49ISSSW → NE · 10 分钟78° SE
22:27ISSW → NNE · 8.5 分钟10° NW
04:59ISSNW → SE · 10.5 分钟69° NNE

Other cities

Same computation for 170 locations.

Browse cities →