Ecliptic Armilla

TITLE=Beijing-Ancient observatory-ECLIPTIC ARMILLA
PHOTOGRAPHER=Ethan Tang
COPYRIGHT=TANGDION PHOTOS
LOCATION=Jianguo Gate, Beijing
DATE=June 13, 2007
Camera=FUJIFILM FinePix S5600:1/200 f/3.2 ISO100
BEIJING, China (BdS)--Made in 1673, the ECLIPTIC ARMILLA was used to determine ecliptic longitude difference and latitude of celestial bodies as well as the 24 Solar Terms.

Sextant

TITLE=Beijing-Ancient observatory-SEXTANT
PHOTOGRAPHER=Ethan Tang
COPYRIGHT=TANGDION PHOTOS
LOCATION=Jianguo Gate, Beijing
DATE=June 13, 2007
Camera=FUJIFILM FinePix S5600:1/170 f/3.2 ISO100
BEIJING, China (BdS)--SEXTANT, made in 1673, was used to measure the angular distance between any two stars less than 60 degrees apart as well as the angular diameters of the sun and the moon.

Ancient Device

TITLE=Beijing-Ancient observatory-device
PHOTOGRAPHER=Ethan Tang
COPYRIGHT=TANGDION PHOTOS
LOCATION=Jianguo Gate, Beijing
DATE=June 13, 2007
Camera=FUJIFILM FinePix S5600:1/80s f/3.2 ISO400

Observatory House

TITLE=Beijing-Ancient observatory-office
PHOTOGRAPHER=Ethan Tang
COPYRIGHT=TANGDION PHOTOS
LOCATION=Jianguo Gate, Beijing
DATE=June 13, 2007
Camera=FUJIFILM FinePix S5600:1/58s f/3.2 ISO400

Altazimuth

TITLE=Beijing-Ancient observatory-ALTAZIMUTH
PHOTOGRAPHER=Ethan Tang
COPYRIGHT=TANGDION PHOTOS
LOCATION=Jianguo Gate, Beijing
DATE=June 13, 2007
Camera=FUJIFILM FinePix S5600:1/50s f/3.2 ISO200
BEIJING, China(BdS)--The Altazimuth, made in 1673, was made to estimate the azimuth of celestial bodies.

Beijing Ancient Observatory

TITLE=Beijing-Ancient observatory
PHOTOGRAPHER=Ethan Tang
COPYRIGHT=TANGDION PHOTOS
LOCATION=Jianguo Gate, Beijing
DATE=June 13, 2007
Camera=FUJIFILM FinePix S5600:1/180s f/3.2 ISO100