equinoctial line


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Noun1.equinoctial line - the great circle on the celestial sphere midway between the celestial poles
great circle - a circular line on the surface of a sphere formed by intersecting it with a plane passing through the center
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References in classic literature ?
But we must have already emerged and gone seven hundred or eight hundred leagues; and if I had here an astrolabe to take the altitude of the pole, I could tell thee how many we have travelled, though either I know little, or we have already crossed or shall shortly cross the equinoctial line which parts the two opposite poles midway."
The island of Serendib being situated on the equinoctial line, the days and nights there are of equal length.
By Night he fled, and at Midnight return'd From compassing the Earth, cautious of day, Since URIEL Regent of the Sun descri'd His entrance, and forewarnd the Cherubim That kept thir watch; thence full of anguish driv'n, The space of seven continu'd Nights he rode With darkness, thrice the Equinoctial Line He circl'd, four times cross'd the Carr of Night From Pole to Pole, traversing each Colure; On the eighth return'd, and on the Coast averse From entrance or Cherubic Watch, by stealth Found unsuspected way.