ORBITAL 轨道桥
UTC --:--:--

Cities / China

Harbin 哈尔滨

45.80°N, 126.53°E · Asia/Shanghai · all times below are local

At 45.8°N the station can pass close to overhead; this week's highest pass reaches 81° to the east-south-east and the sky stays properly dark for 10.3 hours.

orbits & twilight computed 2026-10-29 21:16 UTC FRESH · 49 min ago

The sky is properly dark from 18:10 to 04:28 (10.3 hours); Tiangong makes its next visible pass at 18:04, reaching 35° to the south; Mars is the highest planet at 56° to the south-south-west, around 04:58; the Moon is 82% lit (Waning gibbous).

Dark window
10.3h
sun below −18°
Next pass
18:04
Tiangong · S · 35°
Highest pass
81°
ESE
Moon lit
82%
71.7° peak
Satellite passes — next 14 days ISS · Tiangong · Hubble · above 10° under a dark sky
TiangongFri 30 Oct18:04–18:14 (10 min)35° SW → ESE
TiangongFri 30 Oct19:41–19:50 (9 min)18° SSWW → SE
ISSFri 30 Oct22:27–22:36 (10 min)20° SESSW → ENE
ISSSat 31 Oct00:03–00:13 (10 min)70° NWSW → ENE
ISSSat 31 Oct01:40–01:50 (10 min)30° NW → ENE
ISSSat 31 Oct03:18–03:28 (10 min)37° NNEWNW → E
ISSSat 31 Oct04:54–05:05 (10 min)59° SSWWNW → SE
TiangongSat 31 Oct17:04–17:14 (10 min)37° SWSW → ESE
TiangongSat 31 Oct18:41–18:50 (9 min)25° SSWW → SE
ISSSat 31 Oct21:40–21:49 (9 min)13° SES → ENE
ISSSat 31 Oct23:15–23:26 (10 min)74° ESEWSW → ENE
ISSSun 01 Nov00:53–01:03 (10 min)33° NW → ENE
ISSSun 01 Nov02:30–02:40 (10 min)32° NWNW → E
ISSSun 01 Nov04:07–04:17 (10 min)81° ESEWNW → ESE
TiangongSun 01 Nov17:41–17:51 (10 min)31° SW → ESE
TiangongSun 01 Nov19:18–19:26 (8 min)13° SSWW → SSE
ISSSun 01 Nov22:28–22:38 (10 min)49° SESW → ENE
ISSMon 02 Nov00:05–00:15 (10 min)39° NNWW → ENE
TiangongMon 02 Nov18:18–18:27 (9 min)18° SSWW → SE
TiangongTue 03 Nov17:18–17:28 (10 min)24° SSWW → SE
TiangongWed 04 Nov17:55–18:04 (8 min)13° SSWW → SSE
TiangongThu 05 Nov16:55–17:04 (9 min)18° SSWW → SE

Tonight's timelineHarbin · 16:28 → 06:10

Interactive plan →
Moon72° SW
Mars56° SSW
Jupiter51° SSW
Saturn46° SW
Venusbelow 10°
Mercurybelow 10°
16:2819:1321:5700:4103:2606:10
Best targetshighest first
01Mars01:40–04:5856° SSWup 00:10–06:10
02Jupiter02:16–04:5851° SSWup 00:52–06:10
03Saturn18:04–01:1646° SWup 16:34–02:46

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 · 7 次
18:04TiangongW → ESE · 9.5 分钟35° S
19:41TiangongW → SE · 9 分钟18° SSW
22:27ISSSSW → ENE · 9.5 分钟20° SE
00:03ISSWSW → ENE · 10.5 分钟70° N
01:40ISSW → ENE · 10 分钟30° N
03:18ISSWNW → E · 10 分钟37° NNE
04:54ISSWNW → SE · 10.5 分钟59° SSW
2026-10-31 · 7 次
17:04TiangongWSW → ESE · 10 分钟37° S
18:41TiangongW → SE · 9 分钟25° SSW
21:40ISSS → ENE · 9 分钟13° SE
23:15ISSWSW → ENE · 10.5 分钟74° ESE
00:53ISSW → ENE · 10 分钟33° N
02:30ISSWNW → E · 10.5 分钟32° N
04:07ISSWNW → ESE · 10.5 分钟81° ESE
2026-11-01 · 4 次
17:41TiangongW → ESE · 9.5 分钟31° S
19:18TiangongW → SSE · 8 分钟13° SSW
22:28ISSSW → ENE · 10.5 分钟49° SE
00:05ISSW → ENE · 10.5 分钟39° NNW
2026-11-02 · 1 次
18:18TiangongW → SE · 9 分钟18° SSW
2026-11-03 · 1 次
17:18TiangongW → SE · 9.5 分钟24° SSW
2026-11-04 · 1 次
17:55TiangongW → SSE · 8.5 分钟13° SSW
2026-11-05 · 1 次
16:55TiangongW → SE · 9 分钟18° SSW

Other cities

Same computation for 170 locations.

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