Barnard used the telescope in 1892 to discover a fifth moon of Jupiter, Amalthea. On nights when the observatory remains above that layer, light pollution can be greatly reduced. Often a layer of low coastal clouds invades the valley below, especially on nights from late-spring to mid-summer, a phenomenon known in California as the June Gloom. ![]() The location provided excellent viewing performance because of lack of ambient light and pollution additionally, the night air at the top of Mt. Edward Singleton Holden was the first director. In May 1888, the observatory was turned over to the Regents of the University of California, Īnd it became the first permanently occupied mountain-top observatory in the world. The telescope, built with this lens, became the world's largest refracting telescope from when it saw first light on January 3, 1888, until the construction of Yerkes Observatory in 1897. Warner & Swasey designed and built the telescope mounting. Manufacturing of the lens took until 1885 and it was delivered to the observatory on December 29, 1886. In 1880, a 36-inch (91-centimeter) lens was commissioned to Alvan Clark & Sons, for $51,000 (equivalent to $1,430,000 in 2021). The Great Lick 91-centimeter (36-inch) refractor, in an 1889 engraving Barnard used the telescope to make "exquisite photographs of comets and nebulae", according to D. The first telescope installed at the observatory was a 12-inch (300-millimeter) refractor made by Alvan Clark. Tradition maintains that this road has exactly 365 turns (although there is uncertainty as to what should count as a turn). To keep the grade below 6.5%, the road had to take a very winding and sinuous path, which the modern-day road ( California State Route 130) still follows. ![]() All of the construction materials had to be brought to the site by horse and mule-drawn wagons, which could not negotiate a steep grade. Lick chose John Wright, of San Francisco's Wright & Sanders firm of architects, to design both the Observatory and the Astronomer's House. ![]() Lick additionally negotiated that Santa Clara County construct a "first-class road" to the summit, completed in 1876. ![]() In his last deed he chose the site atop Mount Hamilton, and was buried there in 1887 under the future site of the telescope, with a brass tablet bearing the inscription, "Here lies the body of James Lick". Lick, originally a carpenter and piano maker, had arrived from Peru in San Francisco, California, in late 1847 after accruing significant wealth he began making various donations in 1873. The observatory, in a Classical Revival style structure, was constructed between 18, from a bequest from James Lick of $700,000, equivalent to $21,111,481 in 2021. Lick Observatory is the world's first permanently occupied mountain-top observatory. The first new moon of Jupiter to be identified since the time of Galileo, Amalthea, the planet's fifth moon, was discovered at this observatory in 1892. The observatory is managed by the University of California Observatories, with headquarters on the University of California, Santa Cruz campus, where its scientific staff moved in the mid-1960s. It is on the summit of Mount Hamilton, in the Diablo Range just east of San Jose, California, United States. The Lick Observatory is an astronomical observatory owned and operated by the University of California.
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