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Stars move very fast through space (millions of miles per hour), but because of our distance from them, they appear to move very slowly if at all. The stars we see move the most are the Sun and moon and the other 7 planets of the Solar System. The Sun and stars moves across the sky because the Earth revolves upon its axis, which causes us to see days and nights. The movement of the moon is due to its orbiting the earth and the constant spinning of the Earth. Because the Earth spins, the moon rises approximately 40 minutes later each day. The movement of the planets is caused by their orbit of the Sun and also the Earths. As we go around the sun, our vantage point changes, so objects in the sky appear to move more than they actually do.
Wiki User
∙ 11y ago
Wiki User
∙ 8y agoThe real motion of stars is hardly noticeable even over a period of many years. It's the Earth's daily rotation the is the main cause of their apparent motion. (Stars are so far away that the Earth's revolution around the Sun hardly cases any apparent motion.)
Wiki User
∙ 13y agoas the sun is in the centre of our solar system and we spin on the earths axis it makes it look like the sun rises in the east and set in the west
Wiki User
∙ 8y agoFrom your fixed position on Earth, it would appear that it was the Sun that was apparently moving across the sky.
Wiki User
∙ 6y agoThe Milky Way Galaxy rotates about its centre. As a result the sun moves around the centre of the Milky Way - in much the same way as objects in the solar system rotate about the sun.
Wiki User
∙ 14y ago...by the Earth's rotation.
Wiki User
∙ 8y agoEarth's rotation.
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As the sun moves across the sky the leaves of a plant will?
Grow
Can Mercury be seen from Earth all night long?
No. Mercury lies very close to the sun, and 'follows' the sun across the sky very closely. Therefore it is usually only seen right before dawn or just after sunset.
What reaction do plants carry out during daylight?
Plants carry out the action of photosynthesis during daylight hours. The leaves and flowers of many plants track the sun as it travels across the sky.
What food deficiency causes scurvy?
Scurvy is caused by lack of vitamin C. I`m telling you EAT YOUR VITAMIN C.
A face marking of a small white spot on the forehead is called?
Normally it's caused by sun or maybe it's a natural disease to prevent it wear a sunglasses and try to use sunscreen
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 will happen if the sun stands still?
A:To the ancients, it seemed easy for supernatural powers to make the sun stand still for a few hours, with no adverse outcome. However the apparent motion of the sun across our sky does not mean the sun is actually moving relative to us. This apparent motion is caused by the rotation of the earth, which can not be stopped.
What does the length of shadows made by the Sun throughout the day tell you about the Suns apparent motion across the sky?
If the shadows are longer, that means the Sun is lower in the sky.
Why there are seasons and the apparent motion of the stars and sun?
The seasons are due to axial tilts of planets and the apparent motion of stars and sun on the celestial sphere is due to diurnal motion.
What causes the position of the sun and shadows to change throughout the day?
The rotation of the earth causes the appearance of the changing location of the sun across the sky. The change in shadows caused by sunlight are an extention of the geometery involved.
In what direction is the apparent daily motion of the sun?
It is westwards.
Major advantage of Copernicus' Sun-centered model over the Ptolemaic model?
It offered more natural explanation for the apparent retrograde motion of planets in our sky.
How does the apparent motion of the sun vary season to season?
The answer depends on where on earth you are. In mid summer the sun has a trajectory which takes it to the highest position in the sky. In spring and autumn it is at an intermediate level whereas in the winter it is at its lowest.
What causes the apparant movement of stars in the sky?
The real motion of stars is hardly noticeable even over a period of many years. It's the Earth's daily rotation the is the main cause of their apparent motion. (Stars are so far away that the Earth's revolution around the Sun hardly cases any apparent motion.)
Why does the size of the shadow change in a day?
Because the sun's change in apparent motion across the sky results in a change in the angle of the shadow that is cast.
Can apparent magnitude makes Sirius the brightest star in the night sky?
Yes. Sirius has the greatest apparent visual magnitude of any star in the sky except the sun.
What object on the sky do astronomer use to define apparent solar time?
The Sun
