City sky
Deep-sky observing is severely limited.
Know before you go
Understand how clouds, moonlight, darkness, weather, and city glow will affect what you can see.
Artificial skyglow
Deep-sky observing is severely limited.
City light scatters through the atmosphere and lowers contrast, even with zero clouds. It now acts as a ceiling on the total score, so perfect weather cannot make a bright city sky behave like a dark rural one.
The Moon, planets, double stars, and bright clusters.
Galaxies, nebulae, the Milky Way, and faint meteors.
Estimated from the population of Bucharest; local lighting can change the real value by several classes. This is an honest planning estimate, not a live satellite measurement.
The pin marks your selected location. Brighter areas emit more artificial light.
The map loads public NASA tiles and CARTO/OpenStreetMap labels for the displayed area. The annual 2016 layer shows upward light, not a direct measurement of sky quality.
Tonight's forecast
Comparing clouds with tonight's darkness window…