Equatorial definition of Equatorial in the Free Online Encyclopedia.

equatorial

1. of, like, or existing at or near the equator

2. Astronomy of or referring to the celestial equator

Equatorial

a lens or mirror telescope on a parallactic, or equatorial, mounting (seeTELESCOPE MOUNTING). A clock mechanism rotates the telescope around a polar axis at a rate of one rotation per 24 sidereal hours, so that the celestial object being observed, which moves because of the apparent diurnal rotation of the celestial sphere, remains in the field of view of the telescope. Graduated circles with measuring devices are secured to the axes to direct the telescope at the celestial object according to its hour angle and declination and to enable the approximate determination of its coordinates. Auxiliary astronomical tubes mounted on the primary one, called the finder and the guide, are used to locate the necesssary object and to keep the instrument directed at it during photography.

Equatorials may be visual (equipped with an ocular that has a micrometer for differential measurements) or photographic (with plateholders). (SeeASTRONOMICAL INSTRUMENTS AND DEVICES.)

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No references found	Arrived in Ecuador, squarely under the equatorial sun, where the humans were dying of yellow fever, smallpox, and the plague, I promptly drank again-- every drink of every sort that had a kick in it. John Barleycorn by London, Jack View in context You meet them on the Line in time for the full flower of the Equatorial feeding season, having just returned, perhaps, from spending the summer in the Northern seas, and so cheating summer of all unpleasant weariness and warmth. Moby Dick LXVIII-CXXXIV by Melville, Herman View in context All the weather of the world is based upon the contest of the Polar and Equatorial strains of that tyrannous race. The Mirror of the Sea by Conrad, Joseph View in context	equalizing reservoir equalizing support equally likely cases equally tempered scale equals equals relation equals sign Equant equate Equation equation clock equation of continuity equation of mixed type equation of motion equation of piezotropy Equation of State equation of the center Equation of Time equation solver equation, chemical Equational Division equational logic Equations of Mathematical Physics Equations with Random Errors equator Equatorial equatorial acceleration Equatorial Air equatorial axis Equatorial Belt equatorial belt of calms equatorial bulge equatorial calms Equatorial Channel equatorial chart Equatorial Climate equatorial convergence zone equatorial coordinate system Equatorial Countercurrent Equatorial Countercurrents Equatorial Current Equatorial Currents equatorial cylindrical orthomorphic chart equatorial dry zone equatorial easterlies equatorial electrojet Equatorial Forest Zone equatorial front Equatorial Guinea Equatorial Guinea Independence Day equatorial horizontal parallax	equations of the second order equations of the second order equations of the second order equations of the second order equations of time equations of time Equations with Random Errors equative Equatoguinea Equatoguinea Equatoguinean Equatoguinean Equatoguineans Equatoguineans equator equator equator equator Equator (astronomy) Equator (astronomy) Equator (geography) Equator (geography) Equator (geography) Equator Crossing Equator Exploration Ltd equator of the crystalline lens Equator of the sun Equator Principles Equator Principles Financial Institutions Equator Technologies, Inc. Equatorial equatorial acceleration equatorial air Equatorial Annual Oscillation Equatorial armillary sphere equatorial axis Equatorial belt Equatorial belt Equatorial belt of calms Equatorial belt of calms Equatorial bulge equatorial calms Equatorial Channel equatorial chart Equatorial climate equatorial convergence zone Equatorial coordinate system Equatorial coordinate system Equatorial Coordinates Equatorial Coordinates Equatorial Counter Current Equatorial Countercurrent Equatorial Countercurrents Equatorial Crossing Time equatorial current equatorial current Equatorial currents Equatorial currents equatorial cylindrical orthomorphic chart equatorial dry zone equatorial easterlies

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Arrived in Ecuador, squarely under the equatorial sun, where the humans were dying of yellow fever, smallpox, and the plague, I promptly drank again-- every drink of every sort that had a kick in it.

John Barleycorn by London, Jack View in context

You meet them on the Line in time for the full flower of the Equatorial feeding season, having just returned, perhaps, from spending the summer in the Northern seas, and so cheating summer of all unpleasant weariness and warmth.

Moby Dick LXVIII-CXXXIV by Melville, Herman View in context

All the weather of the world is based upon the contest of the Polar and Equatorial strains of that tyrannous race.

The Mirror of the Sea by Conrad, Joseph View in context

equalizing reservoir

equalizing support

equally likely cases

equally tempered scale