Where are you observing from?
Location estimated from your device's time zone. Pass times change from one city to the next: set your location for accurate times. It is stored only on this device.
Tonight’s sky
Tonight in
Computing the sky…
What to see in tonight's sky: astronomical darkness, hourly clouds, the Moon, visible planets and the sky chart for your location, tonight or any other night.
Moon
The next 14 nights, 2 h after sunset
The night hour by hour
DayTwilightLight nightNearly darkFull darknessBest window
The sky tonight
View looking up, lying on your back with your head to the north: east is on the left. The centre is the zenith, the edge is the horizon.
Planets tonight
Sun
The next 12 months
About this tool
What it does
It tells you whether the night will be good for observing from your location: dark-night hours, hour-by-hour clouds, the Moon, visible planets and a sky map. The calendar for the next 12 months (eclipses, oppositions, elongations of Mercury and Venus, meteor showers, equinoxes and solstices) exports to your calendar as .ics.
The calculations
Dark night: the Sun is more than 18° below the horizon. An hour counts as clear below 30% cloud cover. Positions of the Sun, Moon and planets, phases and eclipses: astronomy-engine, on your device, even offline.
The sources
Clouds, temperature and dew point: hourly forecast from Open-Meteo, which receives coordinates rounded to about 10 km. Meteor showers: usual peak date of each shower.
Which planets are visible tonight?
Those that rise above 5° (Mercury, Venus), 10° (Mars, Jupiter, Saturn) or 15° (Uranus with binoculars, Neptune with a telescope) while the Sun is more than 6° below the horizon. To point at them, see live altitude and azimuth.
Will the sky be clear tonight?
The timeline gives hourly cloud cover from Open-Meteo; an hour counts as clear below 30% cloud. For a photo session, see moonless nights and framing for astrophotography.
Is an aurora possible?
It depends on the Sun's activity, not just on the clouds. The Kp needed from your location is on the page northern lights and Kp index.