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This topic has appeared in the trending rankings 1 time(s) in the past year. While it does not trend frequently, its appearance suggests a renewed or concentrated surge of public interest.
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Heliograph_(disambiguation) entered the ranking for the first time today at position #. This is its highest position ever recorded.
This topic has appeared in the English Wikipedia rankings 1 time. It first appeared on 2026-05-18 and was most recently seen on 2026-05-18.
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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