Since 1971

About the Observatory

The NTHU Observatory was established in 1971 by Professor Qiu Hongyi, who returned from the United States to teach at the Physics Department of National Tsing Hua University. Together with a group of motivated students, he ground an 8-inch Newtonian mirror, built a mirror grinding machine, and later completed a 16-inch Cassegrain reflector — entirely by hand.

In November 1971, all instruments atop the old Physics Building were installed and calibrated, and the founding meeting of the Astronomy Club was held. The observatory and the club were inseparable in those early years.

In 1988, the old Physics Building was demolished and the department relocated to its current location beside the sports field. The observatory was rebuilt in 1991 through the efforts of Professors Shen Junshan and Zhou Dingyi, returning to Physics Department management and formally separating from the Astronomy Club.

After more than two decades of use, the facility fell into disrepair. In 2018, then-department chair Yu Yide initiated a major renovation campaign with alumni from the class of 1978. Under the planning of Professor Lai Shiping of the Institute of Astronomy, the equatorial mount and dome were fully renovated in May 2019.

In 2020, the observatory launched its Facebook, Instagram, and YouTube channels. As one of Taiwan's benchmarks for astronomical science education, it houses the largest aperture refractor in Taiwan — a 25 cm (10-inch) refractor — and continues to serve the public through guided visits, open days, and online resources.

Written by 陳文心 · November 2020

Quick Facts

Founded
1971
Location
Room 801, Physics Bldg, NTHU
City
Hsinchu, Taiwan
Email
nthuobs@gmail.com
Under
Institute of Astronomy, NTHU

Founding Timeline · 1971

Early MarchProfessor Qiu Hongyi returns from the US
Mid AprilGrinding of the 8-inch Newtonian mirror begins
Mid July8-inch Newtonian telescope and grinding machine completed
Early AugustPreparations for the 16-inch Cassegrain begin
Late August8-inch finder completed; 16-inch mirror arrives
Late November16-inch fully installed and calibrated; founding meeting held

Source: Interview of 黃銘爵 by 謝立宜, Republic of China Year 69 (1980)

Historical Record

Former observatory on the old Physics Building.
Former observatory on the old Physics Building.
The original dome, constructed in 1971.
The original dome, constructed in 1971.
16-inch handmade Cassegrain reflector with open fork mount.
16-inch handmade Cassegrain reflector with open fork mount.
Two Celestron 8 telescopes imported from the US.
Two Celestron 8 telescopes imported from the US.

Equipment

25 cm Refractor

The largest aperture refracting telescope in Taiwan. Permanently mounted.

16-inch Cassegrain Reflector

Handmade by students in 1971. Open fork equatorial mount.

Celestron 8 (×2)

Schmidt-Cassegrain telescopes imported from the United States.

All-Sky Camera

Full-sky imaging for real-time cloud cover and weather monitoring.

Weather Station

Monitors temperature, humidity, wind speed, pressure, and rainfall.