Compare places to observe the sky
Compare observing conditions across listed locations or start with coordinates for your own site.
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Lisbon air quality and forecast
Find modelled forecast hours and nearby stations. Check which source serves the place and time you need.
Open tool Lisbon air quality and forecast
PiSpace Air
Find modelled air forecasts and station observations, then check which one describes your question.
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PiSpace Sky
Combine darkness, Moon and cloud information for an observing window, then check the actual site and access.
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Plan a stargazing outing and keep a useful log
Choose a target and observing window, check the horizon and clouds, and log what happened on the night.
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Stargazing preparation and observation checklist
Pick an observing window, run through your departure checks and record the results on site. Bring a fresh copy for each outing.
View resource Stargazing preparation and observation checklist