heliometer
noun
he·li·om·e·ter
ˌhē-lē-ˈä-mə-tər
: a visual telescope that has a divided objective designed for measuring the apparent diameter of the sun but also used for measuring angles between celestial bodies or between points on the moon
Cite this Entry
“Heliometer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heliometer. Accessed 26 Mar. 2025.
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