page_title: Harvard College Observatory
hierarchical_section_title: Harvard College Observatory
caption_attribution_description: English: Grounds of Harvard College Observatory circa 1899
context_page_description: The Harvard College Observatory is an institution managing a complex of buildings and multiple instruments used for astronomical research by the Harvard University Department of Astronomy. It is located in Cambridge, Massachusetts, United States, and was founded in 1839. With the Smithsonian Astrophysical Observatory, it forms part of the Harvard–Smithsonian Center for Astrophysics.
  HCO houses a collection of approximately 500,000 astronomical plates taken between the mid-1880s and 1989. This 100-year coverage is a unique resource for studying temporal variations in the universe. The Digital Access to a Sky Century @ Harvard project is digitally scanning and archiving these photographic plates.
context_section_description: The Harvard College Observatory (HCO) is an institution managing a complex of buildings and multiple instruments used for astronomical research by the Harvard University Department of Astronomy. It is located in Cambridge, Massachusetts, United States, and was founded in 1839. With the Smithsonian Astrophysical Observatory, it forms part of the Harvard–Smithsonian Center for Astrophysics.
  HCO houses a collection of approximately 500,000 astronomical plates taken between the mid-1880s and 1989 (with a gap from 1953–1968). This 100-year coverage is a unique resource for studying temporal variations in the universe. The Digital Access to a Sky Century @ Harvard project is digitally scanning and archiving these photographic plates.
caption: Harvard College Observatory, circa 1899
exif: {"Image ImageWidth": "1896", "Image ImageLength": "1198", "Image BitsPerSample": "8", "Image Compression": "Uncompressed", "Image PhotometricInterpretation": "1", "Image Orientation": "Horizontal (normal)", "Image SamplesPerPixel": "1", "Image XResolution": "200", "Image YResolution": "200", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "Adobe Photoshop CS2 Macintosh", "Image DateTime": "2008:11:25 13:36:53", "Image ExifOffset": "236", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "374", "Thumbnail JPEGInterchangeFormatLength": "5940", "EXIF ColorSpace": "Uncalibrated", "EXIF ExifImageWidth": "1896", "EXIF ExifImageLength": "1198"}