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Griffith Observatory

2800 East Observatory Road

Los Angeles, CA 90027

Griffith Observatory is in Los Angeles, California, United States. Sitting on the south-facing slope of Mount Hollywood in L.A.'s Griffith Park, it commands a view of the Los Angeles Basin, including downtown Los Angeles to the southeast, Hollywood to the south, and the Pacific Ocean to the southwest. The observatory is a popular tourist attraction with an extensive array of space- and science-related displays.

History

The land on which the observatory stands was donated to the City of Los Angeles by Col. Griffith J. Griffith in 1896. In his will, Griffith donated funds to build an observatory, exhibit hall, and planetarium on the donated land. Construction began on June 20, 1933 using a design developed by architect John C. Austin based on preliminary sketches by Russell W. Porter. The observatory and accompanying exhibits were opened to the public on May 14, 1935. In its first five days of operation the observatory logged more than 13,000 visitors. Dinsmore Alter was the museum's director during its first years. Today, Dr. Ed Krupp is the Director of the Observatory.

Exhibits

The first exhibit visitors encountered in 1935 was the Foucault pendulum, which was designed to demonstrate the rotation of the Earth. The exhibits also included a twelve-inch (305 mm) Zeiss refracting telescope in the east dome, a triple-beam coelostat (solar telescope) in the west dome, and a thirty-eight foot relief model of the moon's north polar region.

Col. Griffith requested that the observatory include a display on evolution which was accomplished with the Cosmochron exhibit which included a narration from Caltech Professor Chester Stock and an accompanying slide show. The evolution exhibit existed from 1937 to the mid 1960s.

Also included in the original design was a planetarium under the large central dome. The first shows covered topics including the Moon, worlds of the solar system, and eclipses.

During World War II the planetarium was used to train pilots in celestial navigation. The planetarium was again used for this purpose in the 1960s to train Apollo program astronauts for the first lunar missions.

The planetarium theater was renovated in 1964 and a Mark IV Zeiss projector was installed.

Griffith Park - Griffith Observatory

2800 East Observatory Road

Los Angeles, CA 90027