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Season

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seasonal reference
she is not a servant to scattered branches
Seasoning ...

 


Seasons in the southern hemisphere are reversed from those in the northern hemisphere (e.g. summer for us is winter for them).

Season
One of the four periods into which the year is divided based upon the position of the in the sky. The four seasons are , , (also called ), and .

The seasons are an important part of our lives.
Click on image for full size (77K GIF) ...

*** Unequal Seasons
*** The Sun and Seasons
*** "Zenial Days" on Hawaii
*** Asian tradition on the start of winter
*** One year of continuous sunlight?
And for something completely different: When does Jewish Sabbath begin far north?

Seasons on Other Planets
12.17.03
Every planet in the solar system has seasons. Most, like Earth, have four. They are called winter, spring, summer, and fall. Their names are about the only way the seasons are the same on different planets.

Season SpringSummerFallWinter Earth's Orbit Chart Northern Hemisphere
2
3
4 ...

The Season of Meteors
Nature is delighting the Earth with a special treat. Shooting stars for the holidays.

So, seasonal changes depend on the tilt of the earth's axis because they lead to changes in the amount of heat delivered to a square meter of surface, ...

DS9 Season 1, 19 episodes:
Title Episode Prodno. Stardate Original Airdate
Emissary
1x01/02 ...

4. During which season do the Sun's rays hit the Earth at the most direct angle? __________________________________
5. During which season are the days the shortest? __________________________________ ...

4. During which season do the Sun's rays hit the Earth at the most direct angle? summer
5. During which season are the days the shortest? winter
6. What is the name of the shortest day of the year (and the beginning of winter)? winter solstice ...

Season one of the series shows Dylan Hunt assembling the crew and adjusting to the new universe, while pursuing the creation of the New Systems Commonwealth.

Surface temperatures and seasons. Because of its proximity to the Sun, the surface of Mercury can become extremely hot. High temperatures at "noon" may reach 675 K, while the "predawn" lowest temperatures are 100 K.

Seasonal effect: This is easiest to understand for the idealised case of a nonrotating body orbiting the Sun, for which each "year" consists of exactly one "day".

Seasons
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Seasonal Changes
Because the axis of rotation is tilted about 25° to the plane of revolution, Mars experiences seasons somewhat similar to those of the earth.

SEASONS
The seasons of the year are: spring, summer, fall (autumn), and winter. The seasons are caused by the tilt of the Earth's axis.

Seasons
madhu, madhava in vasanta: spring
sukra, suci in grisma: summer
nabha, nabhasya in varsa: rains
isa, urja in sarada: autumn
saha, sahasya in hemanta: winter
tapa, tapasya in sisira: freeze ...

Seasonal Differences
Cassini's finely tuned vision reveals seasonal differences in the global haze that envelopes Titan in this narrow angle camera image taken on Oct. 24, 2004.

Seasons
Caused by the tilt of the earth's Axis 23.5 degrees
Second of Arc ...

seasonal ~: a form of unequal hours, usually with 12 daytime and 12 night-time hours. Named from the fact that the length of an hour varies with the seasons.

The seasonal changes (consisting of the diminishing of the polar caps and the dark areas formed during Martian summer) in combination with the canals lead to speculation about life on Mars, ...

As the seasons roller coaster back and forth, bringing the Sun to its northernmost point on the June solstice and its southernmost point on the December solstice, ...

eclipse season -- the period of time when the Sun is near alignment with a lunar node, during which eclipses may take place. For solar eclipses, this time window of 37-1/2 days occurs every 173 days.

eclipse seasons -- the times of year, separated by about 6 months, when eclipses are possible. At any given eclipse season, both a solar eclipse and lunar eclipse generally occur.

Eclipse Seasons - The times, separated by about 5 1/2 months, when eclipses of the Sun and Moon are possible
Eclipse Track - The path of the Moon's shadow across the Earth during a solar eclipse ...

eclipse season
Times of the year when the Moon lies in the same plane as the Earth and Sun so that eclipses are possible.
eclipse year ...

Grade 1: Seasonal Changes
Grade 6: Sky Science
Grade 9: Space Exploration
British Columbia - Learning Outcomes - all grade levels ...

Mars has seasons rather like the Earth, but the distance of Mars from the Sun varies much more than the Earth's does and so this effect is correspondingly much greater.

At certain seasons, some areas on Mars are subject to winds strong enough to move sand on the surface and to suspend dust in the atmosphere.

"The Reason for Seasons: The Great Cosmic Megagalactic Trip" by Linda Allison
"The Night Sky Book: An Everyday Guide to Every Night" by Jamie Bob
"The Big Dipper and You" by E.C. Krupp (ages 5-12) ...

The amplitude of this variation changes with the phase of the moon, the seasons, and the sunspot cycle. magnetic memory 1. The ability of a material to retain magnetism after the magnetizing force is removed. 2. = magnetic storage.

rivers (NASA Thesaurus) A general term for natural fresh water surface streams of considerable volume and permanent or seasonal flow, moving in definite channels toward seas, lakes, or other rivers.

The sky abounds with them, northern winter's Castor, springtime's Mizar and Alcor, summer's Albireo (the seasons reversed for the southern hemisphere), dozens of others easily found.

Observations with the Hubble Space Telescope from 1996 to 2002, however, confirm that Neptune's cloud bands have been getting wider and brighter in response to seasonal variations in sunlight, like the seasonal changes seen on Earth.

The signs, unlike the constellations, are defined by the seasons. When the Sun stands right over the Earth's equator on the March equinox, this marks the first point of the sign of Aries.

From Earth, we can see that there are seasons on Mars. During the Martian winter in the northern hemisphere, there is a large polar cap of frozen carbon dioxide.

Did the regular procession of the lunar cycle combined with the wanderings of the planets and the stately progression of the stars and Sun with the seasons underpin and prompt thinking about the nature of the Universe?

In the Silver Age, Zeus shortened springtime and introduced the yearly cycle of seasons. Humans in this age became quarrelsome and ceased to honour the gods. Dike longed for the idyllic days gone by.

UT0 is uncorrected; UT1 is corrected for the Chandler wobble; UT2 is corrected both for the Chandler wobble and for seasonal changes in Earth's rotation rate.

Effects of axial precession on the seasons
This figure illustrates the effects of axial precession on the seasons, relative to perihelion and aphelion.

What is the standard seasonal year?
What is ephemeris time?
How is ephemeris time calculated?
In what year was ephemeris time renamed terrestrial dynamical time?
Wmat makes up the atmosphere on Mars?
Who was Cleomedes?

What are its other seasons like?
How did Triton end up in such an odd orbit?
Do Triton and Pluto have a common history? Was Pluto once a moon of Neptune? Or was Triton once an "independent planet" and subsequently captured by Neptune?

"Our 14-year continuous weather station record from the shore of Lake Hoare reveals that seasonally averaged surface air temperature has decreased by 0.7 degrees Celsius per decade," they write.

But in some regions, there is not much differentiation between the seasons. Since different constellations are visible at different times of the year, you can use them to tell what month it is.

The dark spots on these north polar dunes were areas where the seasonal frost coating had been removed--either by sublimation or by wind erosion. The dark material was presumed to be the sediment that composes the dunes.

The first two are quite localized in the heavens and are seasonal, thus they can be avoided with a little planning; look in your Observer's Handbook for more details.

Some of the most beautiful aurora seen this aurora season were visible on the nights of the 30th and the 1st, due to a pair of disturbances in the solar wind that reached our Earth.

A slightly more subtle point was recognized by ancient astronomers who determined that the Sun moves through the sky on a daily and annual cycles, and that these cycles account for the length of the day and the seasons of the year.

Ozone occurs, in an amount supposed to be associated with the development of atmospheric electricity (lightning, &c.); this amount varies with the seasons, being a maximum in spring, ...

It is the axial tilt on the Earth that is largely responsible for the seasons. Inclination measures the angle of inclination of the orbit to the ecliptic (which is defined by the orbit of the Earth around the Sun).

This binocular menu is also
arranged by season.
A printed version
-- The Binocular (and Naked Eye) Guide to the Stars --
is available, now in its Fourth Edition.

Capricornus, the Sea Goat, represents the tenth zodiacal constellation. It was associated with the rainy season and water in ancient civilizations around the world, including Mesopotamia, China, Egypt and Aztecs.

Phil Harrington's binocular universe: Winter's swarming fireflies
December 2007: This season's sky gem contains challenging targets for binocular observers.

Earth's magnetic field from T89c model during Kp=2 for different seasons.

Moon, Hunter's. The Full Moon that occurs after Harvest Moon. So-called bacause this will occur around the start of the hunting season.
N
Nadir. The point on the celestial sphere directly below the observer. The nadir is directly opposite the zenith.

IVA5-1. The patterns of stars in the sky stay the same, although they appear to move across the sky nightly, and different stars can be seen in different seasons.

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).

Axial inclination
axial inclination is the angle at which a planet's axis of rotation is tilted, with respect to that planet's own orbit. On Earth, as well as other planets, this tilt is responsible for the seasons.

See also: Earth, Time, Year, Light, Day