At an equinox, the Sun is at one of two opposite points on the celestial sphere where the celestial equator ( i. e. declination 0 ) and ecliptic intersect.

At the magnetic dip equator, where the geomagnetic field is horizontal, this electric field results in an enhanced eastward current flow within ± 3 degrees of the magnetic equator, known as the equatorial electrojet.

At the onset of the Neoproterozoic the supercontinent Rodinia, which had assembled during the late Mesoproterozoic, straddled the equator.

At the high end of estimates for the rotation velocity for Vega is along the equator ( for a rotation period of about 12. 5 hours ), which is 87. 6 % of the speed that would cause the star to start breaking up from centrifugal effects.

At the poles, the troposphere is thinner and the temperature only decreases to-45 ° C, while at the equator the temperature at the top of the troposphere can reach-75 ° C.

At surface level, the sinking air diverges again with some moving back to the equator and completing the vertical cycle.

At their intersections with the celestial sphere, these form the celestial equator, the celestial poles and the ecliptic, respectively.

* At the equator objects on the celestial poles stay at fixed points on the horizon.

At almost 7, 000 feet above sea level and almost exactly halfway between the equator and north pole, West Yellowstone experiences a subarctic climate ( Köppen climate classification Dfc ) with cold, sometimes bitterly cold winters, and brief but generally warm summers.

At the equator this delay between fixes was several hours ; at mid-latitudes the delay decreased to an hour or two.

At the equator the two celestial poles are at the horizon and motion is counterclockwise ( i. e. to the left ) around the North Star and clockwise ( i. e. to the right ) around the southern celestial pole.

At the Earth's equator this circle vanishes to a single point – the celestial pole itself – which lies on the horizon, and there are therefore effectively no circumpolar stars at all.

At Oxford he extended the Cape observations of stars to the 7th magnitude from 25 ° S declination to the equator, and collected the results in the Radcliffe catalogue for 1890, which contains the places of 6, 424 stars.

At the equator, the effective gravitational acceleration is 9. 7805 m / s².

At geodetic latitude 48. 46791 … degrees ( e. g., Lèves, Alsace, France ), the radius R is 20000 / π ≈ 6, 366. 1977 …, namely the radius of a perfect sphere for which the meridian arc length from the equator to the North Pole is exactly 10000 km, the originally proposed definition of the meter.

At a declination of-29. 6 °, Fomalhaut is located south of the celestial equator, and hence is best viewed from the Southern Hemisphere.

( At the poles, though, the celestial equator would be parallel to the horizon.

) At all latitudes the celestial equator appears perfectly straight because the observer is only finitely far from the plane of the celestial equator but infinitely far from the celestial equator itself.

At the pole, the temperature may be above 20, 000 K, while the equator is at or below 10, 000 K. The average temperature of the star is about 15, 000 K. The high polar temperatures are generating a fast polar wind that is ejecting matter from the star, creating a polar envelope of hot gas and plasma.

At solar maximum, the Sun's magnetic field lines are the most distorted due to the magnetic field on the solar equator rotating at a slightly faster pace than at the solar poles.

At the equator, there is very little difference ( Pisces, Aries, Virgo and Libra take slightly less time than the other signs ) but as one moves from the equator, larger and larger differences emerge.

`` At 200, 300, 400 feet under the water, when he must be paying very much attention, he will be thinking about what you are telling him.

At his death Fred and Ralph, my husband, were named executors of the estate under the terms of the will.

At about the time the Marsden enterprise was getting under way, the Vail Light and Lumber Company started construction of a chair stock factory on the site of the present Bennington Co-operative Creamery, intending to use its surplus power for generating electricity.

At the very moment that every attempt is being made to take management out from under the irrationality of anti-trust legislation, a drive is on to abolish collective bargaining under the guise of extending the anti-monopoly laws to unions who want no more than to continue to set wages in the same way that ship operators set freight rates.

At one time, while still under the impression that he was dealing with a Cuban plot, the President talked about invoking a total embargo on trade with Cuba.

At first all these colonial churches were under the jurisdiction of the Bishop of London.

* 1862 – American Civil War: Battle of Cedar Mountain – At Cedar Mountain, Virginia, Confederate General Stonewall Jackson narrowly defeats Union forces under General John Pope.

At that time, Paramushir was under Japanese rule.

* 1813 – At the Battle of Grossbeeren, the Prussians under Von Bülow repulse the French army.

At worst, abusing judicial discretion would actually pave the way to a biased decision, rendering obsolete the judicial process in question — rule of law being illicitly subordinated by rule of man under such discriminating circumstances.

At the beginning of the 19th century they belonged to Bukhara ; but under the emir Dost Mahommed the Afghans recovered Balkh and Tashkurgan in 1850, Akcha and the four western khanates in 1855, and Kunduz in 1859.

At present, the islands are organized as Amakusa District, Amakusa City, and Kami-amakusa City, all of which are under the administration of Kumamoto Prefecture.

At his death, the duchy passed to his son-in-law John Sigismund, Margrave of Brandenburg, combining the two territories under a single dynasty and forming Brandenburg-Prussia.

At 17: 30, Nelson hailed one of his two leading ships, HMS Zealous under Captain Samuel Hood, which had been racing Goliath to be the first to fire on the French.

At some small angular rate of rotation, however, an element of surface water can achieve lower potential energy by moving outward under the influence of the centrifugal force.

At the same time, a tribal coalition under Cniva crossed the Roman frontier, probably advancing in two columns.

At the time of his birth, Chaplin's parents were both entertainers in the music hall tradition: Hannah, the daughter of a shoemaker, had a brief and unsuccessful career under the stage name Lily Harley, while Charles Sr., a butcher's son, worked as a popular singer.

At the other end of the scale, tub-boat canals such as the Bude Canal were limited to boats of under 10 tons for much of their length due to the capacity of their inclined planes or boat lifts.

At a time when comic books were coming under fire for supposed sexual, violent and subversive content, Kelly feared the same would happen to comic strips.

At first, Constans was under the guardianship of Constantine II, and the original settlement saw Constans receiving the praetorian prefectures of Italy and Africa.

At all other levels of football, plus all other touchback situations under NCAA rules, the ball is placed on the 20.

At times under some other dynasties in ancient China, the month with the winter solstice was the 12th or the 1st month.

At UCSD, he studied under biochemist Nathan O. Kaplan.

At the global level, the United Nations ' International Covenant on Economic, Social and Cultural Rights of 1966 guarantees this right under its Article 13.