equatorially
1
7.2
- adverb
- /ˌiːkwəˈtɔːriəli/
- Amateur astronomers, too, are finding that computers can compensate for the difficulties of building large equatorially mounted telescopes; see "Reaching Beyond Our Light Grasp," July/August, p. 27.
- equatorially mounted telescope
- equatorially mounted
Examples
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There was an equatorially mounted telescope erected in it by Dollond, with a five-inch aperture, which at that time was looked upon as a large rather than a small instrument.
Academic text (1990) -
An equatorially mounted telescope allows for easier tracking of celestial objects as they move across the sky.
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Astronomers often prefer equatorially mounted telescopes because they simplify the process of star observation.
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To improve your stargazing experience, use an equatorially mounted scope that is properly aligned with the Earth's rotation.
How Tropical
Surface Forms
Morphology
equatorially = equatorial (transparent) = equator + ial + ly
Formed by adding the adverbial suffix '-ly' to 'equatorial', a clear derivation that preserves the adjective's meaning.
Etymology
Equatorially comes from equator, which in turn comes from the Latin root aequus meaning 'equal', like the English word equal. The equator is the line that divides the Earth into two equal halves, so equatorially means 'in a way related to the equator' or 'near the equator'.