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Does The celestial equator always pass directly overhead?
No, the celestial equator does not always pass directly overhead. The position of the celestial equator in the sky is determined by the observer's latitude on Earth. If the observer is located at the equator, the celestial equator will pass directly overhead. However, for observers at different latitudes, the celestial equator will appear at an angle to the horizon.
What rises in the east and sets in the west for an observer in New York?
Most natural celestial objects do this; exceptions would be any fixed star that is 'circumpolar'-- they are close enough to the celestial poles that they never appear to dip below the observer's horizon. Which stars are circumpolar depends on the latitude of the observer.
How the condition of a celestial body to be a circumpolar body?
A celestial body is considered circumpolar when it never sets below the horizon as observed from a specific location on Earth. This occurs if the body's declination is always above the observer's local latitude. In practical terms, circumpolar bodies can be seen rotating around the celestial pole without ever dipping below the horizon.
Is The south celestial pole is located at a declination of -90 degrees?
The Celestial Poles are the infinite extension of the North and South Poles from the Earth into space. The North Star or Polaris, is within 1 degree of the North Celestial Pole. There is no equivalent star for the South Celestial Pole.
What sphere of earth is made of all rock above and below earth surface?
Geosphere
What does nadir mean?
Answer1. an extreme state of adversity; lowest point of anything2. the point below the observer that is directly opposite the zenith on the imaginary sphere against which celestial bodies appear to be projected
Does The celestial equator always pass directly overhead?
No, the celestial equator does not always pass directly overhead. The position of the celestial equator in the sky is determined by the observer's latitude on Earth. If the observer is located at the equator, the celestial equator will pass directly overhead. However, for observers at different latitudes, the celestial equator will appear at an angle to the horizon.
Where does the word nadir originate from?
The word "nadir" comes from Arabic "nadir," meaning "opposite." It was borrowed into English from Medieval Latin in the 14th century. In astronomy, nadir is the point on the celestial sphere opposite the zenith and directly below the observer.
What is a globe of the night sky called?
Understanding that there is no physical thing there, the term "Celestial Sphere" is often used. Early astronomers believed that the "celestial sphere" was a solid crystal sphere, and that the stars were embedded in the crystal. Below the crystal, the Sun, the Moon and five "wanderers", or "planeta" passed over the ground as the Celestial Sphere circled high overhead.
What rises in the east and sets in the west for an observer in New York?
Most natural celestial objects do this; exceptions would be any fixed star that is 'circumpolar'-- they are close enough to the celestial poles that they never appear to dip below the observer's horizon. Which stars are circumpolar depends on the latitude of the observer.
The point directly overhead in the sky dome?
The point directly overhead in the sky dome is called the zenith. It is the highest point in the celestial sphere, opposite to the nadir which is the point directly below one's feet. The zenith is an important reference point for astronomers and navigators.
What is the star latitude and star declination?
Celestial coordinates. -- The star's latitude on the celestial sphere is the same as the Earth latitude that it seems to follow on its way aroujnd the sky. On the celestial sphere, the latitude is called "declination", and is expressed in degrees. -- The star's longitude on the celestial sphere is its angle, measured westward, from the point in the sky called the Vernal Equinox ... the point where the sun appears to cross the celestial equator in March. On the celestial sphere, the star's longitude is called "Right Ascension", and it's expressed in hours. That certainly seems confusing, but an "hour of Right Ascension" just means 15 degrees of celestial longitude. So, as the sky turns, the point directly over your head moves through the stars by 1 hour of Right Ascension every hour.
How the condition of a celestial body to be a circumpolar body?
A celestial body is considered circumpolar when it never sets below the horizon as observed from a specific location on Earth. This occurs if the body's declination is always above the observer's local latitude. In practical terms, circumpolar bodies can be seen rotating around the celestial pole without ever dipping below the horizon.
What is the angle of declination and how do you use it?
An angle of declination is relevant when an observer is at a higher altitude than the object being observed. It is the angle made by the line of sight with the horizontal. Suppose this is angle x. Then if the altitude of the observer is known to be h, then line-of-sight distance to the object is h*sin(x). The object is h*tan(x) from the point below the observer at the level of the object.Conversely, if the line-of-sight distance from the object to the observer or the horizontal distance to the point directly below the observer is known, it is possible to calculate the height of the observer.
What axis of the sphere below is 16 units in length What is the surface area of the sphere?
The answer is given below.
Why an observer in the southern hemisphere cannot see the star polaris?
Polaris, the North Star, is located near the North Celestial Pole which is visible only from the Northern Hemisphere. In the Southern Hemisphere, there is no bright star close to the South Celestial Pole like Polaris because the South Celestial Pole does not have a similarly positioned bright star. Therefore, observers in the Southern Hemisphere cannot see Polaris due to its location in the sky.
What direction is Taurus from the north star?
Taurus is located in the celestial sphere below the North Star, Polaris. This means that Taurus is to the north but is situated underneath Polaris when looking up at the night sky from Earth.
