online ephemeris

An online ephemeris is a digital table or database that provides the positions of celestial bodies, such as planets, moons, and stars, over time. It allows users to find accurate information about where these objects will be in the sky on specific dates. This data is essential for astronomers, navigators, and space missions, as it helps predict celestial events, plan observations, and guide spacecraft. Unlike traditional printed ephemerides, online versions are regularly updated and easily accessible, making it convenient for anyone interested in astronomy or space exploration.