A local decision page
Send visitors to a named forecast page for tonight’s conditions, site darkness, visible objects and the best observing window.
See Big Bend National Park →Free resources for observing communities
Put tonight’s sky where people plan.
Astronomy clubs, observatories, parks and outreach programs can link to a local forecast, share a moonless-night calendar, or place a compact live card on their own site. No account or tracking code is required.
Moonless dates on their calendar
Every named location has a downloadable calendar containing only the dark windows that meet the selected moon and duration rules.
Open the planner →A live, compact forecast card
The card refreshes with the forecast, links back to its full explanation, and is deliberately small enough for a club or park resources page.
Live example · Big Bend National Park
One card, the current answer.
Tonight's observing forecast for Big Bend National Park — GoodSeeing
Embed codeCopy both the card and its location linkShow codeClose
<iframe src="https://goodseeing.com/embed/forecast/v1/big-bend-national-park" width="320" height="240" style="border:0;max-width:100%;border-radius:14px" loading="lazy" referrerpolicy="strict-origin-when-cross-origin" title="Tonight's stargazing forecast for Big Bend National Park"></iframe> <p><a href="https://goodseeing.com/forecast/big-bend-national-park">Tonight's observing forecast for Big Bend National Park — GoodSeeing</a></p>
The 320 × 240 v1 card is a stable public contract. Future breaking changes will use a new versioned URL.
Choose the right local page
Search once; the code updates for you.
Choose a town or dark-sky site and this page rebuilds the live example and copyable code for that location. Forecasts remain estimates; hosts should keep their own safety, access and event policies beside the card.
Need a hand?
Make it fit your resources page.
If a location is missing or the standard card does not fit cleanly, tell us which club, park, observatory or outreach page you are working on.