- 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.
Sentence for "photoheliograph"
- The resulting "photoheliograph" may be described…