equinoctial line

The equinoctial line passes through the centre of it.

From Morals and Dogma of the Ancient and Accepted Scottish Rite of Freemasonry by Albert Pike

This time-honored custom of introducing to old Neptune and his suite the persons who, for the first time in their lives, cross the equinoctial line, is now nearly abolished.

From Home Pastimes; or Tableaux Vivants by James H. Head

They begin at that of Bachan, which is on the equinoctial line, and extend north and south.

From The Philippine Islands, 1493-1898 — Volume 19 of 55 1620-1621 Explorations by early navigators, descriptions of the islands and their peoples, their history and records of the catholic missions, as related in contemporaneous books and manuscripts, showing the political, economic, commercial and religious conditions of those islands from their earliest relations with European nations to the close of the nineteenth century. by James Alexander Robertson

A ceremony practised on passengers on their first passing the equinoctial line: a riotous and ludicrous custom, which from the violence of its ducking, shaving, and other practical jokes, is becoming annually less in vogue.

From The Sailor's Word-Book An Alphabetical Digest of Nautical Terms, including Some More Especially Military and Scientific, but Useful to Seamen; as well as Archaisms of Early Voyagers, etc. by Sir Edward Belcher

Crossing the equinoctial line, Our Artist discovers that the rays of a vertical sun are anything but bracing and cool.

From Our Artist in Cuba, Peru, Spain and Algiers Leaves from The Sketch-Book of a Traveller, 1864-1868 by George W. Carleton