page_title: Beijing Ancient Observatory
hierarchical_section_title: Beijing Ancient Observatory
caption_attribution_description: English: On the grounds of Beijing's Ming-era observatory English: Statue of Guo Shoujing on the observatory grounds, against the background of the observation tower
context_page_description: The Beijing Ancient Observatory is a pretelescopic observatory located in Beijing, China. The observatory was built in 1442 during the Ming dynasty, and expanded during the Qing. It received major reorganization and many new, more accurate instruments from Europeans in 1644.
  As one of the oldest observatories in the world, the Beijing Ancient Observatory grounds cover an area of 10,000 square meters. The observatory itself is located on a 40 by 40 wide meter on a 15 meter tall brick tower, an extant portion of the old Ming dynasty era city wall that once encircled Beijing. Several of the bronze astronomical instruments are on the platform, and other armillary spheres, sundials, and other instruments are located nearby at ground level. It is operated as a museum in affiliation with the Beijing Planetarium.
context_section_description: The Beijing Ancient Observatory (traditional Chinese: 北京古觀象臺; simplified Chinese: 北京古观象台; pinyin: Běijīng Gǔ Guānxiàngtái) is a pretelescopic observatory located in Beijing, China. The observatory was built in 1442 during the Ming dynasty, and expanded during the Qing. It received major reorganization and many new, more accurate instruments from Europeans (Jesuits) in 1644.
  As one of the oldest observatories in the world, the Beijing Ancient Observatory grounds cover an area of 10,000 square meters. The observatory itself is located on a 40 by 40 wide meter on a 15 meter tall brick tower, an extant portion of the old Ming dynasty era city wall that once encircled Beijing. Several of the bronze astronomical instruments are on the platform, and other armillary spheres, sundials, and other instruments are located nearby at ground level. It is operated as a museum in affiliation with the Beijing Planetarium.
caption: On the grounds of the Beijing Ancient Observatory with a bronze bust of the astronomer and mathematician Guo Shoujing in the foreground.
exif: {"Image Make": "CASIO COMPUTER CO.,LTD", "Image Model": "EX-Z50", "Image Orientation": "Horizontal (normal)", "Image XResolution": "72", "Image YResolution": "72", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "0.90", "Image DateTime": "2009:07:02 12:41:46", "Image YCbCrPositioning": "Centered", "Image ExifOffset": "282", "Image PrintIM": "[80, 114, 105, 110, 116, 73, 77, 0, 48, 51, 48, 48, 0, 0, 0, 5, 0, 1, 0, 22, 0, 22, 0, 2, 1, 0, 0, 0, 1, 0, 5, 0, 0, 0, 1, 1, 1, 0, 0, 0, 1, 16, 129, 0, 0, 0]", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "35114", "Thumbnail JPEGInterchangeFormatLength": "8598", "EXIF ExposureTime": "1/250", "EXIF FNumber": "5", "EXIF ExposureProgram": "Program Normal", "EXIF ExifVersion": "0221", "EXIF DateTimeOriginal": "2009:07:02 12:41:46", "EXIF DateTimeDigitized": "2009:07:02 12:41:46", "EXIF ComponentsConfiguration": "YCbCr", "EXIF CompressedBitsPerPixel": "205/48", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "14/5", "EXIF MeteringMode": "Pattern", "EXIF LightSource": "Daylight", "EXIF Flash": "Flash did not fire, compulsory flash mode", "EXIF FocalLength": "41/5", "EXIF FlashPixVersion": "0100", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "2048", "EXIF ExifImageLength": "1536", "Interoperability InteroperabilityIndex": "R98", "Interoperability InteroperabilityVersion": "[48, 49, 48, 48]", "EXIF InteroperabilityOffset": "34990", "EXIF FileSource": "Digital Camera", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Auto Exposure", "EXIF WhiteBalance": "Manual", "EXIF DigitalZoomRatio": "0/0", "EXIF FocalLengthIn35mmFilm": "49", "EXIF SceneCaptureType": "Standard", "EXIF GainControl": "None", "EXIF Contrast": "Normal", "EXIF Saturation": "Normal", "EXIF Sharpness": "Hard"}