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Loading contentNOAA's official source of space-weather forecasts, watches, and warnings — the operational centre that issues the Kp, G-, S-, and R-scale alerts used to protect power grids, satellites, and aviation.
organization:swpcDataset membership
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In the graph export: graph.json · graph.jsonld
Planned API: GET /api/v0/entities/organization:swpc
Scientific entity. See the evidence framework and authority dashboard.
How Space Weather Prediction Center (SWPC) connects across Asteria Star — scientific, cultural, and astrological links are kept separate.
A temporary disturbance of Earth's magnetosphere, driven by the arrival of a fast solar wind or a coronal mass ejection. Strong storms can disrupt satellites, power grids, and navigation, and drive bright auroras.
Geomagnetic storms drive currents in the ground that flow into long transmission lines — geomagnetically induced currents — which can saturate and damage transformers and, in severe cases, cause regional blackouts. The 1989 Québec blackout is the classic example.
The United States' official source for space-weather forecasts and alerts — solar wind, the planetary K-index, the geomagnetic storm scale, and radio-blackout and radiation warnings. Modelled here as a real provider with an honest status; no value is shown until it is connected.
The American Association of Variable Star Observers — for more than a century, the organisation that gathers variable-star observations from amateurs worldwide into a single database that professional astronomers draw on. The model for how amateur and professional astronomy work together.
The Agência Espacial Brasileira is the civilian agency responsible for Brazil's space programme.
The Association of Lunar and Planetary Observers, which coordinates amateur observation of the Moon, the planets, comets, and asteroids — organising observing programmes and archiving the results so that amateur monitoring of the Solar System adds up to something lasting.
Arianespace is a European launch service provider that markets and operates launches of the Ariane family of rockets from the Guiana Space Centre.
The Agenzia Spaziale Italiana is Italy's national space agency, a significant contributor to ESA and to international planetary science missions.
A commercial operator of a low-Earth-orbit constellation for rapid-revisit Earth imaging.
Facts on this topic will be cited from these primary and reference sources.
Public-domain solar-position geometry: sunrise, sunset, solar noon, twilight, declination, and the equation of time.
Public domain (US Government work).