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Why sun have has different altitudes at different times of the year?
the sun follow the celestial sphere
What is the line that the sun traces across the celestial sphere?
The "ecliptic". In truth, the Sun doesn't move; the apparent motion of the Sun across the sky is caused by the Earth spinning, and the apparent motion of the Sun across the "celestial sphere" is caused by the Earth orbiting the Sun. But the plane of the Earth's orbit around the Sun is what causes the apparent motion of the Sun across the celestial sphere, so the "ecliptic" is actually the plane of the Earth's orbit.
What is the point on the celestial sphere located at o hours right ascensions and o degrees declination?
The point on the celestial sphere located at 0 hours right ascension and 0 degrees declination is known as the vernal equinox. It marks the point where the celestial equator intersects the ecliptic and is used as the reference point for defining celestial coordinates. It also marks the beginning of spring in the Northern Hemisphere.
How does an armillary work?
An armillary sphere is a model of the celestial sphere. It consists of a set of rings representing different celestial circles, such as the equator and the ecliptic. By rotating these rings to align with the position of celestial objects, users can track the motion of the stars, sun, and planets in the sky.
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.
Why sun have has different altitudes at different times of the year?
the sun follow the celestial sphere
What is the line that the sun traces across the celestial sphere?
The "ecliptic". In truth, the Sun doesn't move; the apparent motion of the Sun across the sky is caused by the Earth spinning, and the apparent motion of the Sun across the "celestial sphere" is caused by the Earth orbiting the Sun. But the plane of the Earth's orbit around the Sun is what causes the apparent motion of the Sun across the celestial sphere, so the "ecliptic" is actually the plane of the Earth's orbit.
What is the point on the celestial sphere located at o hours right ascensions and o degrees declination?
The point on the celestial sphere located at 0 hours right ascension and 0 degrees declination is known as the vernal equinox. It marks the point where the celestial equator intersects the ecliptic and is used as the reference point for defining celestial coordinates. It also marks the beginning of spring in the Northern Hemisphere.
What does the vernal equinox on the celestial sphere correspond to on geographic maps?
The vernal equinox on the celestial sphere corresponds to the Prime Meridian on geographic maps. This is where the Sun crosses the celestial equator, marking the beginning of spring in the Northern Hemisphere. On maps, the Prime Meridian serves as the reference point for measuring longitude and is located at 0 degrees.
How does an armillary work?
An armillary sphere is a model of the celestial sphere. It consists of a set of rings representing different celestial circles, such as the equator and the ecliptic. By rotating these rings to align with the position of celestial objects, users can track the motion of the stars, sun, and planets in the sky.
When does the sun pass from the southern celestial to the northern celestial hemisphere?
The point in the sky where the sun crosses the celestial equator on its way north is the point called the "Vernal Equinox". The sun reaches that point and passes it on March 21 every year.
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.
What is soltice?
The solstice occurs twice in a year when the sun is furthest from the equator, one in winter and one in summer. The winter solstice is around June 21, when the sun reaches its northernmost point on the celestial sphere, or about December 21, when it reaches its southernmost point. In the Southern Hemispheres, the solstices are reversed.
Celestial sphere is called what in the sky?
The celestial sphere is a theoretical imaginary sphere surrounding the Earth, on which all celestial objects are considered to be located. It is often thought of as a giant dome in the sky where the stars, planets, and Sun appear to be positioned.
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 is something that couldn't happen if the sun and moon where on the same celestial sphere?
The question is irrelevant and not understood. Sorry.
Does the celestial sphere exist physically?
No, the celestial sphere is a notional entity which is basically the "background" of stars against which the Sun, planets, etc., appear to move throughout the year. It is convenient for astronomical notation. The ancients used to believe there were some kind of spheres which stars and other celestial objects occupied and which was used to explain their movement.
