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Built in the 7th year of the Zengtong reign
(1442) of the Ming Dynasty (1368-1644), the platform is
14 meters high with eight large astronomical instruments
made in the Qing Dynasty (1644-1911) set up on it. The
Ancient Beijing Observatory is located near the heart of
downtown Beijing on the south side of famous Chang'an
Avenue.
The Armillary
Sphere
Made in the 4th year during the reign of
Zhengtong (1439 AD) of the Ming Dynasty and designed for
the coordination of celestial bodies. Originally kept in
Beijing, it was moved to the Purple Mountain Observatory
in Nanjing, Jiangsu Province in 1931.
The Celestial
Globe
Made in 1673 AD(Qing Dynasty) and designed for
measuring the time and azimuth of the rising and setting
of celestial bodies, as well as measuring altitudes and
azimuths of celestial bodies at any time.
The New Armilla
Made in 1744 AD (Qing Dynasty) and designed
primarily for measuring true solar time as well as right
ascension difference and declination of celestial bodies.
The Equatorial
Armilla
Made in 1673 AD (Qing Dynasty) and designed primarily for
measuring true solar time as well as right ascension
difference and declination of celestial bodies.
The Abridged
Armilla
Made in the 4th year of the Zhengtong reign (1439 AD), it
is simpler than the Armillary Sphere in both structure
and operation. It was moved to the Purple Mountain
Observation in Nanjing at 1931.
The Altazimuth
Made in 1673 AD and designed primarily for measuring
azimuths of celestial bodies.
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