ORBITAL 轨道桥
UTC --:--:--

Cities / Japan

Sapporo 札幌

43.06°N, 141.35°E · Asia/Tokyo · all times below are local

At 43.1°N the station can pass close to overhead; this week's highest pass reaches 78° to the west-north-west 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 17:30, reaching 65° to the south-south-west; Mars is the highest planet at 58° to the east-north-east, around 04:58; the Moon is 82% lit (Waning gibbous).

Dark window
10.3h
sun below −18°
Next pass
17:30
Tiangong · SSW · 65°
Highest pass
78°
WNW
Moon lit
82%
73.4° peak
Satellite passes — next 14 days ISS · Tiangong · Hubble · above 10° under a dark sky
TiangongFri 30 Oct17:30–17:40 (10 min)65° SSWW → E
TiangongFri 30 Oct19:07–19:17 (10 min)41° SW → ESE
TiangongFri 30 Oct20:44–20:53 (8 min)13° SSWW → SSE
ISSFri 30 Oct21:53–22:01 (8 min)13° SES → ENE
ISSFri 30 Oct23:28–23:39 (10 min)78° WNWWSW → ENE
ISSSat 31 Oct01:06–01:16 (10 min)23° NW → ENE
ISSSat 31 Oct02:43–02:53 (10 min)20° NWNW → ENE
ISSSat 31 Oct04:20–04:31 (10 min)46° NENW → ESE
TiangongSat 31 Oct18:07–18:17 (10 min)54° SW → ESE
TiangongSat 31 Oct19:44–19:53 (9 min)20° SSWW → SE
ISSSat 31 Oct22:41–22:51 (10 min)61° SSESW → ENE
ISSSun 01 Nov00:18–00:28 (10 min)28° NNWW → NE
ISSSun 01 Nov01:56–02:05 (10 min)19° NWNW → ENE
ISSSun 01 Nov03:33–03:43 (10 min)33° NNENW → E
ISSSun 01 Nov05:10–05:20 (10 min)43° SWWNW → SE
TiangongSun 01 Nov17:07–17:17 (10 min)62° SSWW → E
TiangongSun 01 Nov18:44–18:54 (10 min)29° SSWW → SE
ISSSun 01 Nov21:53–22:03 (10 min)36° SESW → ENE
ISSSun 01 Nov23:30–23:40 (10 min)36° NNWW → NE
TiangongMon 02 Nov17:44–17:54 (10 min)41° SSWW → ESE
TiangongMon 02 Nov19:21–19:30 (8 min)12° SSWW → SSE
TiangongTue 03 Nov18:21–18:30 (9 min)20° SSWW → SE
TiangongWed 04 Nov17:21–17:31 (10 min)29° SSWW → SE
TiangongThu 05 Nov17:58–18:07 (8 min)12° SSWW → SSE

Tonight's timelineSapporo · 16:34 → 06:04

Interactive plan →
Moon73° SE
Mars58° ENE
Jupiter53° E
Saturn48° WNW
Venusbelow 10°
Mercurybelow 10°
16:3419:1621:5800:4003:2206:04
Best targetshighest first
01Mars01:40–04:5858° ENEup 00:16–06:04
02Jupiter02:10–04:5853° Eup 00:52–06:04
03Saturn17:58–01:1648° WNWup 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 · 8 次
17:30TiangongW → E · 10 分钟65° SSW
19:07TiangongW → ESE · 9.5 分钟41° S
20:44TiangongW → SSE · 8.5 分钟13° SSW
21:53ISSS → ENE · 8.5 分钟13° SE
23:28ISSWSW → ENE · 10.5 分钟78° WNW
01:06ISSW → ENE · 10 分钟23° N
02:43ISSWNW → ENE · 10 分钟20° N
04:20ISSNW → ESE · 10.5 分钟46° NE
2026-10-31 · 7 次
18:07TiangongW → ESE · 10 分钟54° S
19:44TiangongW → SE · 9 分钟20° SSW
22:41ISSSW → ENE · 10.5 分钟61° SSE
00:18ISSW → NE · 10 分钟28° NNW
01:56ISSWNW → ENE · 9.5 分钟19° N
03:33ISSNW → E · 10.5 分钟33° NNE
05:10ISSWNW → SE · 10 分钟43° SW
2026-11-01 · 4 次
17:07TiangongW → E · 10 分钟62° SSW
18:44TiangongW → SE · 9.5 分钟29° SSW
21:53ISSSW → ENE · 10 分钟36° SE
23:30ISSW → NE · 10 分钟36° NNW
2026-11-02 · 2 次
17:44TiangongW → ESE · 10 分钟41° SSW
19:21TiangongW → SSE · 8.5 分钟12° SSW
2026-11-03 · 1 次
18:21TiangongW → SE · 9 分钟20° SSW
2026-11-04 · 1 次
17:21TiangongW → SE · 9.5 分钟29° SSW
2026-11-05 · 1 次
17:58TiangongW → SSE · 8.5 分钟12° SSW

Other cities

Same computation for 170 locations.

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