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If you are at a location with a latitude of 10 degrees north, a star with a declination of 10 degrees would be located directly overhead, at your zenith. This means the star is in the same plane as your latitude, making it the highest point in the sky relative to your position.
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Suppose you live at latitude 20N. Which star passes closest to your zenith on its daily path through your sky?
These all pass within 5 degrees of the zenith: Hamal (Alpha Arieties), Aldebaran (Alpha Tauri), Algieba (Gamma Leonis), Arcturus (Alpha Bootis), There are other fainter ones as well
What two factors determine the length of daylight?
Daylight starts and ends with the centre of the Sun theoretically at a zenith distance of 90 degrees 50 minutes. It is more than 90 degrees to allow for atmospheric refraction and also because the top edge of the visible Sun must be level with the horizon. The length of daylight depends on the Sun's declination and the observer's latitude. When these two factors are equal the Sun passes overhead at midday.
Where would you be if Sun passes through your zenith on Dec 21?
If the Sun passes through your zenith on December 21, you would be located near the Tropic of Capricorn in the Southern Hemisphere. This date marks the December solstice, when the Sun reaches its southernmost point in the sky, making it directly overhead at midday for locations within the tropics.
Do All stars pass through a zenith?
No, not all stars pass through the zenith. The zenith is the point directly overhead an observer, so stars that are close to the celestial pole (North or South) may not pass through the zenith at all from certain locations on Earth. Stars near the celestial equator are more likely to pass through the zenith as they appear to move across the sky.
What are the altitude and azimuth of a star halfway between the horizon and zenith to the due east?
An object seen halfway between the horizon and the zenith has an altitude of 45 degrees.An object seen due east of the observer has an azimuth of 90 degrees.
How is the altitude angle and zenith angle related to latitude and declination?
solar altitude angle= (90 degree - zenith angle )
How many days will the sun pass through the zenith in a full year?
If you are located anywhere on earth that's more than 23.5 degrees from the equator, then the sun can never appear at your zenith. If you're anywhere within 23.5 degrees of the equator, then the sun will appear at your zenith, or very close to it, twice each year.
What is the altitude of the sun above the northern horizion at noon in Perth Australia on the summer solstice?
Perth is at 32 degrees south and on the summer solstice the Sun's declination is 23½ degrees south. Therefore the Sun is 32-23½ degrees or 8½ degrees from the zenith, that is 81½ degrees above the horizon.
Suppose you live at latitude 20N. Which star passes closest to your zenith on its daily path through your sky?
These all pass within 5 degrees of the zenith: Hamal (Alpha Arieties), Aldebaran (Alpha Tauri), Algieba (Gamma Leonis), Arcturus (Alpha Bootis), There are other fainter ones as well
What two factors determine the length of daylight?
Daylight starts and ends with the centre of the Sun theoretically at a zenith distance of 90 degrees 50 minutes. It is more than 90 degrees to allow for atmospheric refraction and also because the top edge of the visible Sun must be level with the horizon. The length of daylight depends on the Sun's declination and the observer's latitude. When these two factors are equal the Sun passes overhead at midday.
What bright stars are near the zenith during the summer?
That depends on your latitude. Also, it does NOT depend on the season. If a star passes near the zenith in Summer, it will also pass near the Zenith in Winter, although it may not be visible in one season or the other (when it passes near the Zenith during the daytime).
What is a moist densely what is area usually found in a warm tropical wet climate is known as the what you mean 23.5 degrees north and 23.5 degrees South?
The "tropics" are the part of the earth between 23.5 degrees North or South and between these lines the weather is generally hot all year round.On the tropic lines themselves, the sun only passes through the zenith once per year (on the June or December solstice) but any location between these lines, the sun will transit through the zenith on two days of the solar year.
Where would you be if Sun passes through your zenith on Dec 21?
If the Sun passes through your zenith on December 21, you would be located near the Tropic of Capricorn in the Southern Hemisphere. This date marks the December solstice, when the Sun reaches its southernmost point in the sky, making it directly overhead at midday for locations within the tropics.
What is the line that passes from north to south through an observer's zenith called?
Humans perceive in Euclidean space -> straight lines and planes. The circle that passes through the south point, north point and the point directly over.
How many degree is angle from horizen to the zenith?
90 degrees.
From the horizon to the observer's zenith is an angle of?
30 degrees for observers at a latitude of 30 degrees north
Do All stars pass through a zenith?
No, not all stars pass through the zenith. The zenith is the point directly overhead an observer, so stars that are close to the celestial pole (North or South) may not pass through the zenith at all from certain locations on Earth. Stars near the celestial equator are more likely to pass through the zenith as they appear to move across the sky.
