The local space context of Seongnam-si 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
37.439° N, 127.138° E
GeoNames (geonames.org) — CC BY 4.0
population
914,832 inhabitants
GeoNames (geonames.org) — CC BY 4.0
On the ground within 1000 km
Launch sites — 61 within 1000 km
site
distance · bearing
position
source layer
Kaesong, North Hwanghae Prov.
74 km NW (319°)
37.938° N, 126.588° E
gcat-sites
Chiha-ri, Ich'on, Kangwon do, Choson
138 km NNW (343°)
38.623° N, 126.685° E
gcat-sites
Anhueng, Taean missile site, Ch'ungch'ong Namdo, Korea
147 km SW (219°)
36.410° N, 126.100° E
gcat-sites
Koksan, North Hwanghae
159 km NNE (18°)
38.800° N, 127.700° E
gcat-sites
Goseong, South Korea
165 km NE (43°)
38.523° N, 128.418° E
gcat-sites
Gangneung Airbase, South Korea
165 km ENE (77°)
37.754° N, 128.966° E
gcat-sites
Kittaeryong (Gitdaeryung), Anbyun, Gangwon Province (Kangwon-do)
178 km NNE (14°)
38.991° N, 127.624° E
gcat-sites
Tongchon, Gangwon Province (Kangwon-do)
178 km NNE (21°)
38.930° N, 127.880° E
gcat-sites
Scud launch site near Hwangju, N Hwanghae Prov.
187 km NW (318°)
38.687° N, 125.702° E
gcat-sites
Kalma Airport, Wonsan/Kittaeryong (Gitdaeryung), Kangwon-do
194 km N (9°)
39.157° N, 127.495° E
gcat-sites
Chunghwa (Junghwa) county
200 km NW (325°)
38.900° N, 125.800° E
gcat-sites
Jangyon (Changyon), S Hwanghae prov.
200 km WNW (297°)
38.250° N, 125.100° E
gcat-sites
Ryokpo County launch site, Pyongyang, CMIK
201 km NW (326°)
38.930° N, 125.830° E
gcat-sites
Scud launch site near Nampo, South Pyongan Prov. (Pyong'annam-do)
204 km NW (316°)
38.750° N, 125.500° E
gcat-sites
Yangdok, Pyongan Namdo
206 km N (352°)
39.275° N, 126.805° E
gcat-sites
… and 46 more within 1000 km
Ground stations and transmitting sites — 1 within 1000 km
site
distance · bearing
position
source layer
Punggye-ri
459 km NNE (21°)
41.280° N, 129.080° E
nuclear-tests
Announced launches (their pads) — 5 within 1000 km
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.
What can pass overhead
Of the 23,251 artificial objects the registry places in Earth orbit
on 2026-10-18, 20,017 fly orbits whose ground
track reaches 37.439° N, so they can pass directly overhead; the other
3,234 never reach this latitude.
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 from here
The geostationary belt arcs across the southern sky and stands
46.6° 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.
What this page does not know
Tonight's sky and pass times. They depend on the hour, so a static page would print a
stale number. Open the live scene in a browser: /sim.html#sel=EARTH&tn=1,
then stand at Seongnam-si in Stargazing — it computes which satellites are visible now, from this
registry, in your browser.
Anything not catalogued. A site absent from the source catalogues is absent here; an
empty list means «not in the registry», not «nothing there».
Precision beyond the sources. Positions carry the precision their catalogue published.