![Astronomy fan Yan Mingzhe shows his self-made Newtonian telescope. (Photo provided to China News Service)](http://image.cns.com.cn/ecns_editor/transform/20201211/bXsq-haetkhx5928912.jpg)
Astronomy fan Yan Mingzhe shows his self-made Newtonian telescope. (Photo provided to China News Service)
(ECNS) -- Astronomy fan Yan Mingzhe hails from Anhai Town, Jinjiang City, Fujian Province. He managed to create a Newtonian telescope all by himself.
He polished two large-diameter lenses and a star-tracking device.
One of the lenses is 400 millimeters in diameter, the other, 500 millimeters.
"Few Chinese astronomy enthusiasts can grind such a large lens by themselves, and few can build a matching "tracking system", while even fewer can learn to make both," he said.
Yan became interested in astronomy when he was a junior high school student. Now, he can produce one lens in one or two months.
He has captured a clear image of Sinus Iridum, lunar craters, and sunspots using his self-made telescope over the past six years.
![Astronomy fan Yan Mingzhe shows the lenses he has made by himself. (Photo provided to China News Service) Astronomy fan Yan Mingzhe shows the lenses he has made by himself. (Photo provided to China News Service)](http://image.cns.com.cn/ecns_editor/transform/20201211/oZ48-haetkhx5928928.jpg)