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How long does it take the vernal equinox to move 1 degree along the ecliptic?
Wiki User
∙ 14y ago
The length of the total phase in a total solar eclipse varies with the exact geometry of the eclipse; where the Sun and Moon are relative to the Earth, how far away the Moon is, and where in the path of totality you are. But it is NEVER more than 7 minutes 30 seconds, and is often much shorter. For example, for the total solar eclipse on September 21, 2968, the maximum duration of totality was 40 seconds. A duration of 4-5 minutes is typical.
For total lunar eclipses, the total phase varies with the same factors, except that the maximum length of the total phase can be up to an hour and a half or more. For example, in the total lunar eclipse of June 15, 2011, the total phase will be 100 minutes, which is pretty close to the maximum.
Wiki User
∙ 13y ago
Wiki User
∙ 14y agoIn terms of normal, casual, everyday observation, the Vernal Equinox is a point among the stars that doesn't move. Its location isn't affected by the earth's rotation or revolution. It's just a point.
Taking into account the 26,000 year cycle of precession, however, the celestial poles and equinoxes drift one degree in about 72 years.
Wiki User
∙ 14y agoViewed from any one spot on earth, the total portion of a solar eclipse can never last longer than
about 7 and a half minutes. From that same one spot, the total portion is preceded and followed by
partial coverage of the sun that lasts for a few hours before and after 'totality'.
If you were out in space ... like on the surface of the moon ... looking down at the earth, you'd see
the tiny spot of totality sweeping across the earth, bringing the view of totality to every point on its
path for a few minutes. The whole sweep, from one end to the other, would last a few hours overall,
and then it would be over until the next eclipse.
Wiki User
∙ 14y agoThere are generally two solar eclipses and two lunar eclipses each year. Depending on the precise alignment of the Sun, Earth and Moon, one of the eclipses may be two "partial" or penumbral eclipses.
Some years, like 2011, have no solar eclipses at all; the maximum possible is five.
While there are generally two solar eclipses per year, each total solar eclipse covers a very narrow swath across the surface of the Earth. Only people in or near the path of totality actually notice, and it can be a century or two between solar eclipses in a particular place.
Some people get lucky, of course. There will be a total solar eclipse on August 21, 2017, covering a path from Oregon to Charleston, SC. There will be a total solar eclipse on April 8, 2024, covering a path from Mexico to Maine. The two tracks cross near Carbondale, IL, and people who live within about 40 miles of Carbondale will experience two total solar eclipses about 7 years apart!
Wiki User
∙ 13y agoa day when there is a certain amount of sunlight.
Wiki User
∙ 13y agoAs seen from earth, the sun appears to complete a circuit around the ecliptic
once a year ... 365.23 days.
Wiki User
∙ 15y agoA few minutes.
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Which direction does summer migrate and why?
Twice a year, halfway between summer and winter, the Sun rises exactly in the east , and sets exactly in the west (well, nearly exactly, in both cases). We now know that on the days when this happen, day and night are very nearly equal in length, and that time of year is therefore called "equinox." One equinox happens in the fall ("autumnal equinox") and one in the spring ("vernal equinox," "ver" is Latin for spring). As fall advances towards winter, the location of sunrise moves south, as does the location of sunset. The steepness of the curve traced by the Sun does not change, nor does the rate ("speed") with which the Sun appears to move along it, but the length of the curve changes, it becomes shorter. Around December 21 --the "winter solstice" halfway between the equinox dates (typically, September 23 and March 21) sunrise and sunset are as far south as they can go (at any one location). As a result, the Sun has its shortest path for the year, the day is at its shortest and night is at its longest. Other days of that season are short, too, which is one reason for the colder weather in winter. In summer, the Sun's path is longest, and so are the days. In winter, the Sun's path is shortest, and so are the days. After that the points of sunrise and sunset migrate northward again, and days get longer. This migration continues past equinox (when it is at its fastest), and the Sun crosses the horizon furthest northwards around June 21, the "summer solstice" (celebrated in some cultures as "midsummer day"), longest day of the year with the shortest night. After that days get shorter again as sunset and sunrise migrate south again. The long days of summer, of course, match the warmer summer weather.
The reason eclipses do not occur at every new Moon and every full Moon is that the?
The Moon's orbital plane is tilted about 5 degrees to the ecliptic (the Earth's orbital plane), so the Sun, the Moon and Earth do not perfectly align every new moon or full moon. We can have an eclipse only if the alignment of the three bodies happens along the intersection of the two orbital planes.
What will two species with a high degree of niche overlap do?
Mostly they will get along together, depending upon the species. Other wise they will not get along. Lions and Hyenas get along more or less, but do squabble. But cattle and lions or hyena do not get along, even though they occupy the same niche. By definition, carnivores must occupy some one else's niche. But in a field, cattle, horses and sheep will coexist happily. Birds by and large do not seem to have this coexistence philosophy.
Why does California have earthquakes and not Arizona?
Arizona does have earthquakes, just not to the degree that California does. The fact that California has an incredible number of faults and is located along a plate boundary is the biggest contributor to their number and magnitude.
Which zone is the tropical zone?
The vegetation zone in Jamaica is along the northern coast from Rio Bueno to Discovery Bay, in the highest parts of the Blue Mountains, and in the heart of the Cockpit Country. These areas have been virtually been untouched since the time of Columbus.
At noon on the vernal equinox the sun's vertical rays strike the earth along?
Tropic of cancer
When does the vernal equinox 2010 occur in California?
The Vernal Equinox is a point in the sky along the 'track' that the sun appears to follow through the stars in the course of the year. In 2010, the center of the sun reached that point at 10:30 AM PST on March 20.
What travels on the ecliptic?
the sun travels along the ecliptic
Astronomers measure what kind of ascension eastward from the vernal equinox?
The question could have been written more clearly, I think.Anyway, the answer is "right ascension".That's one of the coordinatesused to define the positionof an objectin the sky on the "celestialsphere".It is angular distance, measuredeastward from the Vernalequinox, along the "celestialequator".
Why do fall and spring fall on the certain days that they do?
The beginnings of spring and fall/autumn (depending on where you are on the globe) are determined astronomically, and they occur at an exact moment, the same moment for everyone on Earth. The Vernal Equinox is the moment when spring begins in the northern hemisphere-- fall/autumn begins at this time in the southern hemisphere, and it is the moment that the center of the sun passes over the equator as it travels north along the ecliptic (the ecliptic is the imaginary path that describes the apparent motion of the sun during the course of the year)This happens in late March. The Autumnal equinox is when the center of the sun passes over the equator as it travels south along the ecliptic, in late September. This is the beginning of autumn for us in the north, and the beginning of spring for the southern hemisphere.
What path does Earth travel along?
The Earth travels along a path called the Ecliptic.
What a lie along the elliptic?
I think you mean the ecliptic. This refers to the paths of the planets as they orbit the sun. Also, the moon and movement of the sun are on the ecliptic when viewed from earth, which is why we get eclipses, from which the word 'ecliptic' is derived.
Which constellations does the ecliptic pass through?
FANTASTIC question !!! The constellations along the ecliptic are the constellations of THE ZODIAC ! In Greek, "zodiac" means "ring of animals"
What is ecliptic in relationship to the sun and the earth?
Ecliptic means the imaginary line that marks the path the Sun moves on annually. The ecliptic path projects the Earth's orbit and along helps mark when eclipses will occur.
What are the dates of the twice yearly equinox?
It varies, mostly on how far along we are in the 4-year cycle of leap years and the 400-year cycle of leap centuries and on what part of the world you're asking about (although it's Friday morning where I live, it's Saturday in some parts of the world). Lately, in the U.S., the vernal equinox has been falling around March 20, and the autumnal equinox around September 22, although this year it's on the 23rd.
What is the place where the sun stops its northward motion along the ecliptic?
Summer solstice
Where is constellation Scorpio located?
Gemini is a zodiacal constellation in the northern hemisphere between Taurus and Cancer on the ecliptic.
