The main entrance is located on the northern side of the museum on 81st Street near Central Park West in Manhattan's Upper West Side. Completed in 2000, it includes the new Hayden Planetarium, the original of which was opened in 1935 and closed in 1997. Neil deGrasse Tyson is its first and, only director.HistoryThe center is an extensive reworking of the former Hayden Planetarium, whose first projector, dedicated in 1935, had 2 successors previous to the current one.The original Hayden Planetarium was founded in 1933 with a donation by philanthropist Charles Hayden. In 1935, the Hayden Planetarium, designed by architects Trowbridge & Livingston, opened, after its construction was funded by a $650,000 loan from the Reconstruction Finance Corporation and a $150,000 donation from banker Charles Hayden of Hayden, Stone & Co. Its mission was to give the public "a more lively and sincere appreciation of the magnitude of the universe... and for the wonderful things which are daily occurring in the universe." Joseph M. Chamberlain, hired as an assistant curator in 1952, became Chairman of the Planetarium in 1956. In 1960, a Zeiss Mark IV projector was installed, followed by a Zeiss Mark VI projector and new seats in 1993.
