photoheliograph definition

  • noun:
    • A telescope equipped to photograph the sun.
    • A heliograph, with a camera attached, used to photograph sunlight
    • A modified variety of telescope adapted to taking photographs associated with the sun.
    • A photographic telescope made for making photo-graphs for the sunlight, specifically at a transit of Venus or at a solar eclipse. There are several types of the tool, varying commonly in construction.

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