Heliograph (disambiguation)

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Heliograph may refer to:

  • Heliograph, tripod-mounted mirrors used as solar telegraphs
  • Daylight signalling mirror, also known as a heliograph in British English, handheld mirror to reflect sunlight as a distress signal
  • Sunshine recorder, also known as a heliograph, a device that records the amount of sunlight at a given location
  • Solar telescope, also known as a heliograph or photoheliograph, a telescope especially adapted for viewing the surface of the Sun
  • Heliography, the photographic process used to make the earliest known permanent photograph from nature
  • Heliographic coordinate system, a type of coordinate system used to identify locations on the Sun's surface
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