--/ 100
CALCULATING…
BEST WINDOW—
- CLOUD
- —
- RAIN RISK
- —
- VISIBILITY
- —
- DARKNESS
- —
- MOON
- —
- TEMPERATURE
- —
LOCAL OBSERVING OUTLOOK / SEVEN NIGHTS
Is tonight good
for looking up?
Combine astronomical darkness, cloud, rain, visibility, Moon glare, meteor activity, and the current ISS signal into one honest observing forecast.
LOCATION-SAFECoordinates are rounded before leaving this device.
01 / CHOOSE AN AREA
Set your observing location.
Use your browser or search for a city. Only coordinates rounded to 0.1°—roughly an 11 km grid—are saved and requested.
OR SEARCH A CITY
CALCULATING DARKNESS AND CONDITIONS…
03 / VISIBLE TONIGHT
What should I look for?
Checking the five naked-eye planets against local twilight and weather.
BEST PLANET TARGET
HOW PLANET VISIBILITY IS ESTIMATED
Positions, rise/set times, brightness, twilight, Moon separation, and forecast cloud are combined into practical guidance. Buildings, terrain, haze, and your exact horizon are not represented.
The shower calendar is being matched to local darkness and weather.
UPCOMING METEOR WINDOWS
Checking for a sunlit station against a dark local sky.
NEXT VISIBLE PASSES
Cloud forecasts become less certain farther out. Local haze, terrain, and light pollution are not fully represented.
DATA SOURCES ↗BEST THIS WEEK
CALCULATING THE STRONGEST WINDOW…
04 / SEVEN-NIGHT OUTLOOK
Plan the week.
Scores compare weather and natural sky brightness during astronomical darkness.