Your location tells us what is above the horizon and when. Choose a place before calculating the sky.
Location is used for sky calculations. Your profile stays in this browser; no account is required. City search and weather requests go directly to Open-Meteo. Normal links do not share your saved location. Observing guide
Set observing location to calculate altitude, timing and practical visibility. This guide describes the object in general.
A naked-eye test of eyesight — Alcor sits close beside Mizar in the handle of
the Big Dipper, visible to sharp eyes without any optical aid. Turn even a
small telescope on Mizar itself and it splits again into its own tight
telescopic pair.