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When does the star Sirius vanish in Egypt and when does it reappear?
Helical setting (sets just before sunset, or when it "vanishes")The helical setting of Sirius for Egypt is generally in late May. See "Problems in determining helical rise/set dates" below for more information on why an exact date for the helical setting of Sirius is hard to calculate."Dog Days"The time period between the helical setting and the helical rise for Sirius is approximately 70 days.Helical rise (rises just before dawn, or when it "reappears")The helical rise of Sirius was considered to be the marking day in which the Nile river would soon annually flood, and also marked as the beginning of the Egyptian new year. Because of this, it is sometimes called the Nile Star. Today, the helical rise of Sirius for Egypt is in early August. See "Problems in determining helical rise/set dates" below for more information on why an exact date for the helical rise of Sirius is hard to calculate.Problems in determining helical rise/set datesThe exact dates pertaining to the helical rise/setting of Sirius or any other star can be rather hard to calculate for several reasons (light pollution, clouds, latitude/longitude of the observer's location, etc. to name a few). This also greatly depends on where in Egypt. Over time, the dates for both the helical rise and the helical setting have drastically changed over the course of thousands of years and tends to change by 2-3 days over the course of a couple hundred years.As a general rule of thumb, the further north you are, the later Sirius will "rise" and the further south the earlier it will "rise".
What was the name of the LP by Pat Metheny with Wichita Falls in the title?
1980 release with Lyle Mays called 'As Falls Wichita, So Falls Wichita Falls'.
What is a rise of sumer?
The rise of sumer is a time of starvation
Where is the Taylors Falls Historical Society in Taylors Falls Minnesota located?
The address of the Taylors Falls Historical Society is: Po Box 333, Taylors Falls, MN 55084-0333
When was A Song Will Rise created?
A Song Will Rise was created in 1965.
When using a level what are you leveling to if the earth is round?
You are leveling the line 90 degrees to the center of the Earth. If your line isn't level, the bubble will rise away from the center of the earth.
How do you calculate height of instrument in leveling?
Elevation of point + whatever reading from Meter Rod= HI
How do you calculate a gradient?
(rise)/(run)
Does the air preassure rise or fall with height?
falls
Why is levelling important in surveying?
Leveling in surveying is important to get an accurate measurement. The rise and fall of the grade will cause the measurements to be off, resulting in an inaccurate measurement of plots of land.
How do you use the word calclate in a sentence?
Calculate the sums on the board.We calculate that the temperature will rise.
Why does your temperature rise before period?
Mine does rise, about 3 days before periods and falls during periods
What are the release dates for Nura Rise of the Yokai Clan - 2010 The Curtain Falls in the Darkness?
Nura Rise of the Yokai Clan - 2010 The Curtain Falls in the Darkness was released on: USA: November 2010
What is method are used in leveling?
there are many ways out for leveling and are water leveling ,dumpy leveling ,laser leveling , sprite levalling
The price of Kroger stock will rise if?
if the demand for Kroger stock falls
How do you calculate rise and run for stairs with a limited total run?
Dear sir/madam, please would you help me to calculate the rise & run of a stairs. Thank you, John.
How do you calculate rise over run?
rise divided by run: a fraction, rise is y and run is x (you run on a horizontal plane) (you rise on a vertical plane)
