Spring equinox in 2003 was on March 21, while fall equinox was on September 22, 184 days later. In 2004, a leap year, spring equinox occurs March 20, and if you count the days, you will see that to get there only takes 181 days more.
(a) The spring equinox, on or around 21 March.
(b) The ascending node of the ecliptic on the celestial equator; also the time at which the apparent longitude (see Apparent Place; Longitude, Celestial) of the Sun is 0°. (see Equinox) ...
Southern spring equinox, sun crosses equator at 9.05 pm NZST
September 24
18% lit crescent moon 8° to right of Mars, magnitude 1.4, early dawn sky.
What is the spring equinox?
When is the spring equinox?
When does the vernal equinox occur?
When is the autumnal equinox?
What is the vernal equinox also known as?
What is the precession of the equinoxes?
What is the autumnal equinox?
The vernal or spring equinox occurs around 21 March each year, although this is only spring for observers in the Northern Hemisphere.
- Celebrating the Spring Equinox in Mexico - Spring Equinox in Chichen Itza and throughout Mexico
- Where is zero degrees latitude and zero degrees longitude (the intersection of the Prime Meridian and the Equator)?
vernal equinox (From Stargazers to Starships Glossary - GSFC) The spring equinox.
They were divided on the same principle; each opened at the spring equinox; the first Arab sign Sharatan was strictly equivalent to the Hindu Acvini; and eighteen constellations in each were virtually coincident.
Spring Equinox, Vernal Equinox
spring tides
spy glass (terrestrial telescope)
standard candle
standard cosmology
Standard Cosmology Model
star clusters
star color, star types, classes and subclasses
star nursery
starburst galaxy ...
Hipparchus made equinox and solstice observations, and according to Ptolemy (Almagest III.4) determined that spring (from spring equinox to summer solstice) lasted 94 + 1/2 days, and summer (from summer solstice to autumn equinox) 92 + 1/2 days.
It and the Spring equinox, advancing westward about 50 arcseconds per year, move about 1 arcminute per year in relation to each other. At this rate, the time between coincidences of the perihelion and equinox is about 21,000 years.
On March 20, when the spring equinox takes place, Mercury joins the planetary parade. Mercury, the innermost planet of the solar system, stays closely tethered to the Sun -- much of the time lost in the Sun's glare.
Serpent visible during the spring equinox
In the 1980s, Chichen Itza began to receive an influx of visitors on the day of the spring equinox.
As the Martian South Pole emerges from the darkness of winter at the time of southern Spring Equinox, the dull-gray polar hood begins to retreat pole-ward and revealing the brilliant white edge of the cap (SPC).
Do eggs only balance on end during the Spring Equinox?
The Earth
Is there a source that one can peruse and purchase high altitude pictures of a particular area on earth?
Equinox The two times of the year when the Sun crosses the celestial equator; vernal or spring equinox occurs about March 21st, and autumnal or fall equinox about September 22nd (northern hemisphere seasons).
Equinox- the two points at which the sun crosses the celestial equator; the spring equinox is about March 21, and the autumnal equinox is about September 22 ...
paschal moon: (pron. pas-kal) the first full moon following the Spring equinox. Important for the determination of Easter.
...
was the ceremonial capital of the Persian Empire during the Achaemenid dynasty. Persepolis is situated northeast of the modern city of Shiraz, Iran in the Fars Province of modern Iran....
- a symbol Zoroastrian Nowruz - in day of a spring equinox ...
Thus, it precisely marked the spring equinox when Antares marked the autumn. Finally, the bright star Regulus (RA 10h 08m), located almost exactly on the ecliptic, marked summer.
Bull trying to escape below the horizon, which during the subsequent days disappears in the Sun's rays to remain invisible for a period of forty days, after which it is reborn, rising again for the first time (March 21) to announce Spring equinox.
 See also: Spring, Equinox, Sun, Time, Earth
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