The local space context of Montréal 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 | 45.509° N, 73.588° W | GeoNames (geonames.org) — CC BY 4.0 |
|---|---|---|
| population | 1,762,949 inhabitants | GeoNames (geonames.org) — CC BY 4.0 |
| site | distance · bearing | position | source layer |
|---|---|---|---|
| Plattsburgh AFB or other FB-111 base | 95 km S (174°) | 44.660° N, 73.460° W | gcat-sites |
| Plattsburgh AFB, NY | 96 km S (174°) | 44.653° N, 73.469° W | gcat-sites |
| USS Staten Island, 1953 Arctic expedition (Operation MUSHRAT) | 428 km SE (142°) | 42.430° N, 70.370° W | gcat-sites |
| North Truro Air Force Station | 480 km SE (142°) | 42.030° N, 70.050° W | gcat-sites |
| Ninigret State Park (Charlestown NAS), Charlestown, Rhode Island | 487 km SSE (161°) | 41.360° N, 71.670° W | gcat-sites |
| USS Rushmore U. Michigan Cruise 1956 | 648 km SSE (160°) | 40.000° N, 71.000° W | gcat-sites |
| Terrier intercept test area off US Atlantic coast (RI/Mass?) | 648 km SSE (148°) | 40.500° N, 69.500° W | gcat-sites |
| USS Eastwind, 1954 Arctic expedition | 670 km ESE (122°) | 42.100° N, 66.700° W | gcat-sites |
| USS Staten Island, 1955 Arctic expedition | 670 km ESE (115°) | 42.670° N, 66.180° W | gcat-sites |
| Camp Rocket Camp, Concordia University, Matoush Airport CRS7, Quebec | 719 km N (8°) | 51.900° N, 72.128° W | gcat-sites |
| Wurtsmith AFB | 779 km W (265°) | 44.452° N, 83.380° W | gcat-sites |
| East Quoddy, Nova Scotia | 805 km E (91°) | 44.908° N, 63.335° W | gcat-sites |
| Naval Air Test Center, Patuxent River, Maryland | 836 km SSW (197°) | 38.286° N, 76.408° W | gcat-sites |
| Vize Expedition 6, 1978 (SU017921) | 843 km S (188°) | 38.000° N, 75.000° W | gcat-sites |
| 1964 Croatan MRF Expedition | 843 km S (188°) | 38.000° N, 75.000° W | gcat-sites |
| … and 6 more within 1000 km | |||
| site | distance · bearing | position | source layer |
|---|---|---|---|
| Electron | 6x HawkEye 360 | 868 km S (191°) | 37.833° N, 75.488° W | launchlibrary |
| Neutron | Maiden Flight | 868 km S (191°) | 37.832° N, 75.490° W | launchlibrary |
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, 16,125 fly orbits whose ground track reaches 45.509° N, so they can pass directly overhead; the other 7,126 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° | no — its track stops at 41.5° |
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 37.6° 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.
/sim.html#sel=EARTH&tn=1,
then stand at Montréal in Stargazing — it computes which satellites are visible now, from this
registry, in your browser.