equinox
equinoctial point

In fact that happens only on two days of the year, the equinoxes.

The moon's effects are different at each of the equinoxes however.

However, the difference will be significant as equinoxes slide further.

There are two important solar events in addition to the equinoxes.

These two points in the sun orbit are named equinoxes.

Star maps almost always use one of the standard equinoxes.

It comes around, like the equinoxes, twice each year, and at roughly the same time.

This interpretation is most accurate at the equinoxes, of course.

However, the most common are those around the equinoxes and solstices.

"A third, more precise setting comes with the various equinoxes of the year."

It happened with the frequency and regularity of the equinoxes.

At the time, the precession of the equinoxes had not been discovered.

However, this is no longer true due to the precession of the equinoxes.

"The door is aligned with sunrise on the equinoxes, of course," she said.

At the equinoxes, no movement of the trough is needed during the day to track the sun.

She and her plants are not governed by equinoxes.

This was done in many cultures where festivals were celebrated at the equinoxes.

"The lights are most normally seen in the fall and spring," I said, "near the time of the equinoxes."

At the spring and fall equinoxes some 5,000 to 7,000 people visit the site.

This approach is not consistent with the precession of the equinoxes.

For the Earth, this is referred to as the precession of the equinoxes.

Since that time Julian equinoxes and epochs have been used.

The equinoxes were also the days of ancestor veneration in China.

The spells available between the spring and autumn equinoxes differ.

In Tasmania strong winds are most common close to the equinoxes and during winter.

The equinoctial points are not marked in the sky, so he needed the Moon as a reference point.

By extension, the term equinox may denote an equinoctial point.

It uses the tropical zodiac, which is aligned to the equinoctial points.

Equinoctial Point, 1967.

He came now to announce to us the completion of his Essay on the Pericyclical Motions of the Earth's Axis, and the precession of the equinoctial points.

It has the traditional name Mesarthim, of obscure origin, and has been called "the First Star in Aries" as having been at one time the nearest visible star to the equinoctial point.

Hipparchus gave an account of his discovery in On the Displacement of the Solsticial and Equinoctial Points (described in Almagest III.1 and VII.2).

The equinoctial colure G, passing through the north and south poles of the heaven at N and S, and through the equinoctial points Aries and Libra, in the ecliptic.

His theory is based on the idea that the sun "takes some star for its dual and revolves round it in about 24,000 years of our earth - a celestial phenomenon which causes the backward movement of the equinoctial points around the zodiac."

His two books on precession, On the Displacement of the Solsticial and Equinoctial Points and On the Length of the Year, are both mentioned in the Almagest of Claudius Ptolemy.