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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.
How fast does the sun go down?
The apparent speed at which the Sun "goes down" is due to the Earth's rotation, which takes approximately 24 hours to complete. This rotation creates the illusion of the Sun moving across the sky and "setting" in the west.
What is the sun's apparent path through the background of stars called?
The sun's apparent path through the background of stars is called the ecliptic. It is the apparent annual path that the sun follows as seen from Earth.
When is the apparent diameter of the sun the largest?
The apparent diameter of the sun is largest when it is closest to Earth, during the winter solstice in December. This phenomenon is known as perihelion, when Earth is at its closest distance to the sun in its elliptical orbit.
In what direction is the apparent daily motion of the sun?
The apparent daily motion of the sun is from east to west due to the rotation of the Earth on its axis.
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.
How fast does the sun move over the surface of the earth as perceived from earth and how does one calculate that speed at various latitudes?
One day is 24 hours, so the apparent movement of the Sun is one full circle - or 360 degrees - every 24 hours. That is equivalent to 15 degrees per hour. That's the speed of the Sun as perceived from Earth - and such an apparent movement of an object in thesky has to be expressed in angular measurement (such as degrees or radians), not in meters/second, kilometers/hour, etc. Also, this apparent speed is the same at different latitudes. Actually, it can be slightly less when the Sun is not at the equinox, since then, the Sun doesn't describe a major circle from our point of view. But the difference is not great.
How fast does the sun go down?
The apparent speed at which the Sun "goes down" is due to the Earth's rotation, which takes approximately 24 hours to complete. This rotation creates the illusion of the Sun moving across the sky and "setting" in the west.
What is the apparent speed of the sun along the ecliptic?
The apparent speed of the Sun along the ecliptic varies, because the Earth's orbit around the Sun is elliptical. The annual average speed is 360 degrees in 365.24 days, which is about 0.99 degrees per day. At a distance of 93 million miles, that translates to about 1.6 million miles per day, or about 67 thousand miles per hour.
What is the sun's apparent path through the background of stars called?
The sun's apparent path through the background of stars is called the ecliptic. It is the apparent annual path that the sun follows as seen from Earth.
Why is the sun called the apparent path?
When we view the rising and setting of the sun, we assume the viewpoint of a motionless Earth, but we know that the Earth is actually rotating on its axis, and the sun does not orbit the Earth.
What is the apparent shift of stars as earth orbits the sun?
parallax :)
When is the apparent diameter of the sun the largest?
The apparent diameter of the sun is largest when it is closest to Earth, during the winter solstice in December. This phenomenon is known as perihelion, when Earth is at its closest distance to the sun in its elliptical orbit.
In what direction is the apparent daily motion of the sun?
The apparent daily motion of the sun is from east to west due to the rotation of the Earth on its axis.
The earth is moved from 1 au from the sun to 2 au from the sun how is the apparent brightness of the sun as seen from earth affected?
The apparent brightness of the sun would decrease because the intensity of sunlight weakens with distance. By moving the Earth from 1 AU to 2 AU, the distance between the Earth and the Sun doubles, resulting in a decrease in the amount of sunlight reaching Earth and causing a decrease in apparent brightness.
Does the sun appear to move at a steady rate or does it appear to speed up slow down or move irregularly?
The sun appears to move at a steady rate due to the Earth's rotation. However, this motion can appear to speed up or slow down throughout the day as the Earth orbits around the sun. Factors such as the Earth's axial tilt and the changing seasons can also create variations in the sun's apparent movement.
Which color star is the Earth's sun?
Our Sun has a spectral classification of Yellow (apparent yellowish white)
