Question about hours of daylight and distance from the equator (see details)?
956732
you are right,lenght of day depends on : date (position of the earth on it's orbit); location on earth (latitude, elevation);  to calculate day/night lenght, longitude is needed only to find mean time of sunrise/set,noon...in calculs, time should be converted to UTM, dates to Julianian dates.\ni don't know formula to calculate length of day/night,but here's some usefull sites:\nhttp://www.gcstudio.com/suncalc.html\nhttp://susdesign.com/sunangle/\nhttp://aa.usno.navy.mil/faq/docs/equinoxes.html
1022169
According to www.about.com the circumference of the earth measured at the equator is 24,901.55 miles. Measuring through the poles is a slightly shorter distance at 24,859.82 miles.
731930
If you have a compass measure the angle between the position of the sun and south.  Divide this by 15 (from 180 deg divided by 12hrs) to get hours before/after midday.  If the measured angle is greater than 180 (e.g. after midday) then add your hours to 12, if the angle is lower than 180 (i.e. before midday) then subtract you angle from 12 to get the time. this time will be in GMT (or universal time) so if you are somewhere that is using +1hrs (eg BST) then add that on afterwards. Alternatively without a compass you can eyeball it have guess where the sun is relative to the south.   Sunrise and sunset positions change throughout the year and are still related to time. \nAt night time you have to know the stars and the correct rising and setting times for the particular time of the year.  They all revolve around the north star.  One way to do it is to pick a constellation that you know - like Orion - the website link at the end say that in the UK this is at it's highest point in the sky at about midnight at this time of year, and it travels from east to west, so you can estimate the time based on it's height.\n\nIf it's cloudy you're stuffed.
417138
On it's axis I presume. I'm afraid it's not definitive at all:\n\n25 days at the equator\n27 days 35 degrees of latitude from the equator.\n33 days 75 degrees of latitude from the equator.\n\nThis is for the "surface" of the sun.
188774
http://www.worldtimezone.com/\n\nlook at the map and calculate it based on your time zone.
223428
is the distance from the equator the same? and where they fit on their continents in correlation with other countries?
662534
About 8.\n\n\nTo clear up any  ambiguity contributed here by some--- The average distance from the Earth to the Sun (or 1 astronomical unit) is 8.317 light minutes. Saying it's "more" or "less" sometimes is stating the obvious-- it's an AVERAGE. Saying it's "usually" different than its average, is nonsensical. \n\nhttp://en.wikipedia.org/wiki/Light_minute
185059
Towards the equator, where it doesn't rain too much!  Just kidding.  What exactly do you want to know?
599168
In the mid-latitude regions like the 48 contiguous states of the US, the path of the sun (the ecliptic) across the sky is lower than it is in the tropics. \n\nIf you lived at the equator, the sun would pass directly overhead at true noon on an equinox day (it passes directly overhead where I live this week, and again in July). We say this is 90 degrees from the horizon.\n\nIf you lived at one of the poles, the sun would barely skim the horizon in the summer--getting only as high as 23.3 degrees, and not appear at all in winter. \n\nIf you lived at 45 degrees latitude north, the highest the sun would ever get in your sky is about 68 degrees from the southern horizon on the summer solstice.\n\nIf you were to trace the path of the sun from the horizon as it rises and sets--you might suffer permanent damage to your eyes, so don't--you would find that in North America the angle is more acute than it is in the tropics, because of the lower path in the sky.\n\nFor these two reasons, the sun spends more of its "day" near the horizon in the US than it would in many places in India. On the other hand, there are some places in the US that are farther south than some places in India!
877541
The tilt of the Earth's axis causes the number of daylight hours and the intensity of the sunlight to differ throughout the year. For example, our "shortest" day (least amount of sunlight) of the year will be on Dec. 20 or 21st (one of them, I forget). That is the time that the Earth is positioned in it's orbit around the sun such that the tilt of the Earth's axis makes the northern hemisphere tilt away from the sun for the maximum amount of time. This sparks the Winter season . We are getting less and less sunlight up to that point and gradually increase sunlight after that until six months later (June 20 or 21, I forget), we have our "longest" day. This sparks the 'Summer' season.\n\nSo, why isn't Dec. 21 our coldest day? Well, the Earth's surface retains heat from the warmer months. Even though we increase sunlight after Dec. 21, it is not enough to warm the surface until some months later. Likewise, June 21 is not our hottest day because after June 21, we still get enough sunlight to bake the surface and continue to heat the ground. It is not until about the time that the sun crosses the equator that we have Fall and Spring.\n\nIf you shine a flashlight at a tennis ball, you'll notice that about half of the ball gets direct light, but that the center of the ball gets the most. Think of the Earth as the ball and the sun's focal center is constantly moving up or down throughout the year.
95409
When we're on equinoxes, ie, mid spring and mid fall, the sun is travelling on a path where its altitude at noon = your lattitude. \n\nSo lets take Montreal for example, at almost a 45 degree lattitude. Imagine a line drawn across the sky so that the highest point the sun is at is 45 degrees.\n\nLets move to summer. The angle the sun will be at, during noon on the longest day (the solstice) will be 45 + 23.5 degrees (the tilt of the earth) = 68.5 degrees.\n\nNow during winter, the sun will only climb to 45 - 23.5 = 21.5 degrees.\n\nif you've drawn these lines, you'll notice that the winter line is extremely shorter than the summer line - the amount of time the sun is above the horizon is shorter because you've dropped the arc line significantly, covering up more of the sun's path.\n\nI hope I've conveyed this adequately - the only way to properly see this is to picture it.
630789
i want to see the daily path of the sun on the sky:\n\nrising from east and setting to west as everywhere on earth but going through north at noon not south as in northern hemisphere. must be fascinating to see: all shadows at noon pointing south instead of north\n\nlove your beaches too
337385
the sun directly casts it rays on the equator. the earth is tilted at a slight angle, so, that means that one of the poles are sometimes farther away than the other, but the equator always faces the sun and gets the full force
1163913
The average distance between the Earth and the Sun is 149,590,787 km or 92,951,640 mi. This distance is called an Astronomical Unit (AU). The orbit of the Earth deviates a bit from a circle, so the distance between the Earth and the Sun isn't always the same. The Earth is closest to the Sun (in the perihelion of the Earth's orbit) around 4 January, when it is winter in the northern hemisphere of the Earth and summer in the southern hemisphere, and is furthest from the Sun (in the aphelion of the Earth's orbit) around 4 July, when it is summer in the north and winter in the south.\n\nThe difference between the distances on 4 January and 4 July is about 3 percent, which corresponds to about 5 million km or 3 million mi.
132625
A day is 24 hours long. However, the amount of daylight varies tremendously. In summer, there is 24 hours of daylight in the Midnight Sun period. In midwinter, there is polar night where the sun never goes over the horizon.
1185825
Funny, its the longest day here in Minnesota....you must be in the Southern Hemisphere\n\nIt sounds to me as if you are looking for something to tell you how much daylight there is each day.  Here is a cool little weather site that I go to check the weather (and daylight hours) in Negril, Jamaica. \n\nIt works for all major cities around the world.  Just type in your city, and country in the box in the upper left corner. It shows all these things: Actual Time, Civil Twilight, Nautical Twilight, Astronomical Twilight, Moon rise, Length Of Visible Light, and the length of Day.  It will even tell you how much the next day is different  like this: Tomorrow will be 0m 3s shorter. \n\n You can also change the date you are looking for and it will show you the astronomical data for that day. \n\n Try it....you'll like it!    Happy viewing!\n\nhttp://www.wunderground.com/global/stations/78387.html
14152
The circumference of the earth at the equator is 24,901.55 miles (40,075.16 kilometers).\n\nBut, if you measure the earth through the poles the circumference is a bit shorter - 24,859.82 miles (40,008 km). This the earth is a tad wider than it is tall, giving it a slight bulge at the equator. This shape is known as an ellipsoid or more properly, geoid (earth-like).