Live now
The Sun does not wait, and neither do the asteroids. This is what the instruments say at this moment — with the time each agency measured it, and never a value invented to fill a gap.
Nothing on this dashboard knows where you are. Every value here is the same for every reader on Earth. The one page that does need a location — Tonight — takes it from a form and computes with it in your own browser. Your browser is never asked for your position, nothing is remembered between visits, and no coordinate is ever sent to AsteriaStar or placed in one of its URLs. If you choose to ask for a cloud forecast, your browser requests it from the Norwegian Meteorological Institute directly, with the coordinates rounded to about a kilometre — that is the only time anything you typed leaves your device, it goes to them and not to us, and the exact request is printed on the page.
Space weather
RecentSolar wind
457km/s
Planetary Kp
2.0
Quiet
IMF Bz
-1.0nT
Near-Earth objects
LiveApproaches, 60 days
34
Inside one lunar distance
1
Above Torino 0
0
Torino 0 means no consequence.
The Space Station
LiveLatitude
22.4°
Longitude
97.8°
Altitude
420km
Events this week
Dated events
1
Computed instants and annual forecasts, which need no network at all.
Next one
New Moon
Fri, 11 Sep 2026 03:25 UTC
Make it personal
Everything above is true everywhere. What is worth going outside for depends on where you are, and Tonight works that out from coordinates you type — twilight and darkness, the Moon and its interference, the planets worth pointing at, and visible Space Station passes. The whole calculation runs in your own browser, so your location never reaches this site.
- Tonight — A plan for coordinates you type, computed in your browser.
- Space weather — The solar wind and the geomagnetic index, right now.
- Near-Earth objects — What is passing, and what is being watched.
- Satellites — Where the Space Station is at this moment.
- Events — What the calendar says is happening this week.
Provider status
Full data-status →- 8Connected
- 1Architecture-ready
- 9Providers modelled
- 0Fabricated values
| Provider | Category | Status | Licence |
|---|---|---|---|
| NOAA Space Weather Prediction Center | space-weather | Connected | Public US government data (NOAA/SWPC); attribution expected. |
| NASA DONKI | solar-activity | Connected | Public NASA data. The documented CCMC web service requires no key; the api.nasa.gov mirror of the same catalogue does. |
| IAU Minor Planet Center | near-earth-object | Connected | Public MPC data (IAU); attribution expected. |
| JPL / CNEOS Close-Approach Data | near-earth-object | Connected | Public NASA/JPL data (SSD/CNEOS APIs). |
| CelesTrak Orbital Elements | orbital | Architecture-ready | Public two-line-element data; attribution to CelesTrak expected. |
| NASA ISS Trajectory Data | orbital | Connected | Public domain (US Government work), NASA/JSC. |
| NASA/GSFC Eclipse Catalogues | events | Connected | Public domain (US Government work), subject to NASA's media usage guidelines. Credit Espenak and Meeus. |
| Launch Library 2 | events | Connected | The provider states the database is free to everyone within a rate of fifteen requests an hour; attribution given on every surface. |
| Atmospheric Conditions | atmospheric | Connected | NLOD 2.0 and CC BY 4.0 — attribution required, commercial use permitted. |
Status is read from the live-data catalogue and the live-sky provider registry. 8 of 9 providers are connected end-to-end and serve real values with the provider's own timestamps; 1 remain architecture-ready and show no values at all. No live value, timestamp or provider status is fabricated.
By category
- Space Weather
The near-real-time state of the Sun–Earth environment — solar wind, the planetary K-index, the geomagnetic storm scale, and alerts — served by NOAA's Space Weather Prediction Center. Provider-fed only; no value is shown until a live connection is made.
1 providers - Solar Activity
Solar events — flares, coronal mass ejections, and solar energetic particle events — from NASA's DONKI database. Provider-fed only.
1 providers - Near-Earth Objects
Close approaches of asteroids and comets, from the IAU Minor Planet Center and JPL's Center for NEO Studies. Provider-fed only; no approach distance or date is shown until a live connection is made.
2 providers - Orbital & Satellites
Orbital elements and satellite passes — the ISS and other satellites via CelesTrak two-line elements and SGP4 propagation. Architecture-ready; the TLE feed and propagation are not yet wired.
2 providers - Atmospheric Conditions
The local conditions that decide an observing night. Cloud cover is connected, from MET Norway, and fetched by the reader's own browser; seeing, transparency and Bortle sky brightness still await a licence-safe provider. No condition is ever fabricated.
1 providers
The providers
- Atmospheric ConditionsConnectedAtmospheric conditions
The local conditions that decide whether an observing night happens. CLOUD COVER is connected, from the Norwegian Meteorological Institute: fetched by the reader's own browser, only when they ask, so their coordinates go to the institute and never to AsteriaStar. Atmospheric seeing, sky transparency and Bortle sky brightness remain unconnected and are never fabricated.
- CelesTrak Orbital ElementsArchitecture-readyOrbital / satellites
CelesTrak publishes two-line orbital elements for thousands of satellites, from which passes over an observer can be computed by SGP4 propagation. Evaluated for Program CL and NOT connected: the host refused automated connections. The ISS is tracked instead from NASA's own operational ephemeris, which is a separate provider.
- IAU Minor Planet CenterConnectedNear-Earth objects
The IAU's clearing house for asteroid and comet observations, designations, and orbits. CONNECTED: the NEO Confirmation Page - candidate objects awaiting confirmation - is fetched live and shown at /neo/recently-discovered.
- JPL / CNEOS Close-Approach DataConnectedNear-Earth objects
NASA JPL's Center for Near-Earth Object Studies computes close-approach tables and impact-risk (Sentry) summaries for asteroids and comets, served through the Solar System Dynamics APIs. CONNECTED: close approaches, the Sentry table and recent database entries are fetched live and shown at /neo.
- Launch Library 2ConnectedAstronomical events
An open, community-maintained database aggregating the launch announcements of operators and agencies worldwide. CONNECTED: the upcoming schedule is served at /events/launches, with every entry's scheduling precision and last confirmation time passed through unchanged.
- NASA DONKIConnectedSolar activity
NASA's open database of solar and space-weather events — flares, coronal mass ejections, solar energetic particle events, and geomagnetic storms — served through CCMC's public web service. CONNECTED: four event catalogues are fetched live and shown at /space-weather/events.
- NASA ISS Trajectory DataConnectedOrbital / satellites
NASA Johnson Space Center's Flight Operations Directorate publishes the International Space Station's operational trajectory openly: state vectors every four minutes in the mean equator and equinox of J2000, spanning fifteen days, in the CCSDS Orbit Ephemeris Message format. CONNECTED: the station's position, ground track and visible passes are computed from it.
- NASA/GSFC Eclipse CataloguesConnectedAstronomical events
NASA Goddard's Eclipse Web Site publishes the Five Millennium Catalog of Solar and Lunar Eclipses by Fred Espenak and Jean Meeus — the instant, type, Saros series, magnitude and geometry of every eclipse from 2000 BCE to 3000 CE. CONNECTED: the twenty-first-century tables are fetched and every eclipse of 2001–2100 is served at /events/eclipses.
- NOAA Space Weather Prediction CenterConnectedSpace weather
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. CONNECTED: eleven SWPC products are fetched live and shown at /space-weather, each with the provider's own timestamp.
Data & provenance
Each provider is a first-class knowledge-graph entity resolved through the Scientific Data Engine, reusing the operating organisation and the space-weather phenomena already in the graph, and taking its status from the live-provider registry rather than from a hand-typed field. 8 of 9are connected end-to-end and serve real values with the provider's own timestamps; the rest show no values at all and record why, because a status with no reason behind it is an aspiration. Nothing is fabricated, and a provider that cannot be reached is reported as unreachable rather than substituted. See source quality.
From the Journal