(Jiashen August 22), September 17, 1764, British-Netherlands-born astronomer John Goode Lick born.



John Goode Malik (John Goodricke, 1764 September 17, 2011 -1786 years 20 days), the British-Dutch-born astronomer made in the field of variable star outstanding contributions.
Goode Lick was born in the Netherlands in 1764, lead to a deaf childhood fever. His youth had a deep interest in the Star. In the winter of 1782, under 20-year-old Goode Lick continuous observation of a variable star located in the constellation Perseus Algol (Perseus �� Star), a measurement of the light period for 2 days 20 hours 49 minutes 8 seconds, and Algol light change mechanism, Algol light up a dark two stellar binary system, two stars each other surround operation, the overall brightness dimmed when two star mutual cover. 1888 Germany the astronomers Woge ear use spectroscopy confirmed Goode Lick this idea. This binary is now called eclipsing binaries or eclipsing variable. Goode Lick to the Royal Society in May 1783, reported his theory, (Lssdjt.com) and has received the Copley Medal of the Royal Society. (On www.TodayOnHistory.com) the
the next two years, Goode Lick two variable stars have been found: Lyra of �� (Chinese name Sheliak) and Cepheus �� (Chinese name Cepheid). Goode Lick correctly pointed out that the the Cephei the �� stars is a variable star in the true sense of a per se luminosity change. Cepheus �� stars as the representative of a large class of stars known as Cepheid variables.
1786 Goode Lick was elected a member of the Royal Society. Two weeks later, under the age of 22-year-old Goode Lick died due to over exertion. To commemorate this deaf astronomer, Goode Lick died Goode Lick Institute of the University of York, was named after him. (TodayinHistory.cn)
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