celestial equator
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
This region is positioned near the celestial equator and close to the flat disk of the Milky Way, which makes it visible from many locations on Earth during certain seasons.
From Science Daily • Dec. 25, 2025
Fall officially kicks off Friday at 11:50 p.m. with the fall equinox, the moment the sun crosses the celestial equator, an imaginary line above earth’s equator.
From Seattle Times • Sep. 21, 2023
Orion straddles the celestial equator, so it is well known to observers in both the Northern and Southern Hemispheres and holds the record for containing the most bright stars in one stellar pattern.
From National Geographic • Aug. 23, 2023
And whereas Ptolemy based his coordinate system on the ecliptic, Hipparchus used the celestial equator, a system more common in modern star maps.
From Scientific American • Oct. 20, 2022
In other words, that is the ship's longitude for, as mentioned before, longitude is the distance East or West of Greenwich that any point is, measured on the arc of the celestial equator.
From Lectures in Navigation by Draper, Ernest Gallaudet
