ORBITAL 轨道桥
UTC --:--:--

Cities / China

Beijing 北京

39.90°N, 116.41°E · Asia/Shanghai · all times below are local

At 39.9°N the station can pass close to overhead; this week's highest pass reaches 78° to the west and the sky stays properly dark for 10.3 hours.

orbits & twilight computed 2026-10-29 20:54 UTC FRESH · 8 min ago

The sky is properly dark from 18:54 to 05:12 (10.3 hours); ISS makes its next visible pass at 05:41, reaching 37° to the north-east; Mars is the highest planet at 60° to the south-east, around 05:36; the Moon is 82% lit (Waning gibbous).

Dark window
10.3h
sun below −18°
Next pass
05:41
ISS · NE · 37°
Highest pass
78°
W
Moon lit
82%
77.7° peak
Satellite passes — next 5 days ISS · Tiangong · Hubble · above 10° under a dark sky
ISSFri 30 Oct05:41–05:51 (10 min)37° NENW → ESE
TiangongFri 30 Oct18:02–18:12 (10 min)60° NNWW → E
HubbleFri 30 Oct18:34–18:43 (9 min)13° SSW → ESE
TiangongFri 30 Oct19:39–19:49 (10 min)78° WWNW → ESE
HubbleFri 30 Oct20:13–20:22 (9 min)13° SWSW → SE
TiangongFri 30 Oct21:16–21:25 (10 min)21° SWW → SE
ISSFri 30 Oct22:24–22:34 (10 min)16° SESSW → ENE
ISSSat 31 Oct00:00–00:11 (10 min)52° NWWSW → NE
ISSSat 31 Oct01:38–01:47 (9 min)15° NNWWNW → NE
HubbleSat 31 Oct18:00–18:10 (10 min)13° SSW → ESE
TiangongSat 31 Oct18:39–18:49 (10 min)70° NEWNW → E
HubbleSat 31 Oct19:39–19:49 (10 min)13° SWSW → SE

Tonight's timelineBeijing · 17:18 → 06:42

Interactive plan →
Moon78° WNW
Mars60° SE
Jupiter54° S
Saturn51° WNW
Venusbelow 10°
Mercurybelow 10°
17:1819:5922:3901:2004:0106:42
Best targetshighest first
01Mars02:18–05:3660° SEup 01:00–06:42
02Jupiter02:54–05:3654° Sup 01:36–06:42
03Saturn18:36–02:1251° WNWup 17:18–03:30

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

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Other cities

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