The local space context of Tianjin as this registry holds it — the catalogued human footprint on the ground around it, the orbits that can pass overhead, and the geostationary belt seen from here.
| position | 39.142° N, 117.177° E | GeoNames (geonames.org) — CC BY 4.0 |
|---|---|---|
| population | 13,866,009 inhabitants | GeoNames (geonames.org) — CC BY 4.0 |
| site | distance · bearing | position | source layer |
|---|---|---|---|
| 51St Base, Fengrun, Tangshan, Hebei province | 112 km NE (44°) | 39.856° N, 118.093° E | gcat-sites |
| 822 Brigade missile base, Laiwu, Shangdong province | 327 km S (171°) | 36.235° N, 117.716° E | gcat-sites |
| Bohai launch area (Some Yellow Sea launches may also be here) | 330 km ESE (101°) | 38.500° N, 120.900° E | gcat-sites |
| Huludao Shipyard test site | 354 km ENE (60°) | 40.700° N, 120.800° E | gcat-sites |
| Jinzhou missile base, Liaoning province | 409 km NE (55°) | 41.190° N, 121.170° E | gcat-sites |
| 410 Brigate Missile Base, Dengshahe, Liaoning province | 420 km E (87°) | 39.229° N, 122.054° E | gcat-sites |
| Haiyang test site, Shandong | 438 km SE (125°) | 36.800° N, 121.200° E | gcat-sites |
| Taiyuan weixing fashe zhongxin | 439 km WSW (247°) | 37.500° N, 112.600° E | gcat-sites |
| Jianggezhuang Submarine Base | 451 km SE (137°) | 36.104° N, 120.579° E | gcat-sites |
| Huang Hai CZ-11 launch zone | 591 km SE (142°) | 34.900° N, 121.190° E | gcat-sites |
| Space Pioneer Gongyi Static Test Site | 614 km SW (218°) | 34.709° N, 113.051° E | gcat-sites |
| Uiju launch location, N Pyongan province, N Korea | 642 km E (79°) | 40.026° N, 124.578° E | gcat-sites |
| Sohae Launch Site, Tongch'ang-dong, Pyongang-bukdo (N Pyongan Prov), N Korea | 649 km E (83°) | 39.660° N, 124.706° E | gcat-sites |
| Dongrim (Tongrim), N Pyongan Prov. | 651 km E (80°) | 39.900° N, 124.700° E | gcat-sites |
| Sonchon, N Pyongan Prov. | 667 km E (81°) | 39.800° N, 124.900° E | gcat-sites |
| … and 40 more within 1000 km | |||
| site | distance · bearing | position | source layer |
|---|---|---|---|
| MUSCOVY | 258 km SSW (204°) | 37.017° N, 115.995° E | nuclear-tests |
Distances are great-circle on a sphere of mean radius 6,371 km; bearings are initial true bearings from the city. Each position is the source catalogue's own, read back from the registry.
Of the 23,251 artificial objects the registry places in Earth orbit on 2026-10-18, 19,995 fly orbits whose ground track reaches 39.142° N, so they can pass directly overhead; the other 3,256 never reach this latitude.
| space station | inclination | can pass overhead |
|---|---|---|
| Bai Xiang | 85.0° | yes |
| International Space Station (+3 docked records) | 51.6° | yes |
| Kosmos-382 | 55.9° | yes |
| Tianhe | 41.5° | yes |
Computed: an orbit's equatorial inclination bounds the latitudes its track reaches (inclination i, or 180° − i when retrograde), from the orbital elements the registry holds. «Can pass overhead» is geometry, not a schedule — when, and whether it is lit and visible, depends on the hour.
The geostationary belt arcs across the southern sky and stands 44.7° above the horizon due south — the elevation to aim at for a satellite at this city's own longitude. Computed: spherical Earth (equatorial radius 6,378.137 km), circular orbit of one sidereal day (42,164 km); good to a few tenths of a degree.
/sim.html#sel=EARTH&tn=1,
then stand at Tianjin in Stargazing — it computes which satellites are visible now, from this
registry, in your browser.