Groq-powered astronomy assistant
Ask Stellara AI about tonight's sky
Use your saved location, telescope, and live observing data to get target ideas, session advice, and practical next steps.
Observation Planning Tools
Plan tonight with ISS position, observing conditions, and upcoming events.
Live ISS Tracker
Live ISS position, altitude, speed, and visibility status.
Updating ISS orbital position from CelesTrak TLE data...
Latitude:
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Longitude:
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Altitude:
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Velocity:
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Visibility:
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Use this map to time visible passes at your site, then cross-check cloud cover and moonlight below.
ISS orbit data: CelesTrak TLE propagation (satellite.js).
Upcoming Astronomy Events
Meteor showers, conjunctions, eclipses, and opposition dates with visibility notes.
Visibility labels indicate hemisphere coverage and useful observing windows such as "Best before dawn".
Events database status: waiting for fetch...
Fetching upcoming astronomical events from the Stellara events database...
Event visibility catalog: Stellara curated astronomy events database.
Astronomy Weather and Moon Conditions
Cloud layers, humidity, wind, seeing, transparency, moon phase, and visibility.
Weather data update time: --
Search your observing site and decide quickly: deep-sky session, lunar/planetary session, or wait for better conditions.
Practical note: high humidity can increase haze, strong winds can make tracking unstable, and moonlight can brighten the background sky.
Weather models: Open-Meteo (cloud, wind, humidity, visibility) + 7Timer (seeing, transparency). Astronomy times: QWeather (server-side proxy).
Retrieving observing conditions from Open-Meteo and 7Timer...
Weather data unavailable
Unable to retrieve observing conditions from Open-Meteo / 7Timer.
Sign in to save observing locations.
No saved observing locations yet.
Selected Location:
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Current Conditions
Temperature
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Cloud Cover
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Wind Speed
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Humidity
--%
Visibility
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Observing Summary
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Astronomy Conditions
Sunset
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Moon Phase
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Moon Rise
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Moon Set
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Seeing ⓘ
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Transparency ⓘ
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Sun Altitude ⓘ
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Moon Altitude ⓘ
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Moonlight Impact ⓘ
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Light Pollution Zone ⓘ
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Sky Brightness ⓘ
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Approx. Bortle ⓘ
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Quick Observing Verdict ⓘ
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Best Observing Window Tonight ⓘ
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Advanced Weather Analysis
Premium observing guidance derived from the forecast, moon timing, and sky clarity data.
Advanced observing analysis will appear after you select a location.
Stellara Pro unlocks a compact planning summary once real weather and astronomy data are available.
Analysis Snapshot
Best Target Type Tonight
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Recommended Targets
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Moonlight Impact
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Moon Position & Timing
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Session Recommendation
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Key Risk Factors
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Observing Index Breakdown
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Observing Index ⓘ
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