Tonight
Sun, Moon and darkness, next 24 hours
The shaded bands are twilight, getting darker toward true night. Observing is best where the Sun line sits in the darkest band and the Moon is down.
Observing outlook NEXT 5 NIGHTS
Dew watch, 24 hours
Air temperatureDew point
When the two lines meet, dew forms on the dish feed and anything optical.
Wind and gusts, 24 hours
AverageGusts
Gusts over about 20 mph can shake a dish enough to smear a drift scan.