Add Place

Enter a place (may include an address), then 'Find Place' and 'Save Place' or click on the map to set latitude/longitude.

Place name

Time zone ID

Latitude

Longitude

Uses daylight saving time (DST)

Find Place Save Place Clear Form

Tip: click on the map to set exact latitude/longitude.

Graphs

Solar Sector

Select a place and use the day-slider. For details click the solar sector.

Info

Close

Help

SolarOne Web calculates and visualizes solar data for places using browser-only storage.

Quick Start

• Use World Map to view places and select/deselect them.
• Use Add Place to geocode a location, adjust coordinates, and save.
• Use Graphs to render Rise/Set, Max Elevation, and Length of Day.
• Use Solar Sector to inspect sunrise-to-sunset azimuth sector by day.

Data and Storage

• All data is stored in your browser (localStorage), no backend required.
• Starter places are seeded on first run; use Restore Starter Places if needed.
• Yearly solar values are precomputed and cached per place/year for performance.

No-key Mode Notes

• Maps use OpenStreetMap tiles (no billing key).
• Geocoding/timezone lookup uses public services and may be rate limited.
• Satellite map style is intentionally not included in no-key mode.

Accessibility

• Status and feedback messages are announced via live regions.
• Forms use labels and native controls for keyboard and screen-reader support.
• Use browser zoom and responsive layout for readability on different devices.