Scientist: Michael Busch
This website provides ephemerides for large and small bodies for user specified time spans, from various observer locations. An ephemeris (plural: ephermerides) is a tabulation of computed positions and velocities (and/or various derived quantities such as right ascension and declination) of an orbiting body at specific times. You can search for bodies by name most easily by using wildcards, e.g. "*Kleo*".
You generally want to pick "VECTORS" ephemeris type, as this puts the coordinates in a vector form in the International Celestial Reference Frame.