the equator
Where on Earth can you observe all the stars in the sky over an entire year quizlet?
Only at the equator are all the stars visible over the course of the year. From full moon to third quarter moon takes about a week.
Where on Earth can you see over the course of a year the entire sky?
That's only true if you are positioned at the very north or south pole, or from the equator. From the poles, however, all you ever see is the same half of the celestial sphere. From the equator, as the year goes along, you can see the entire celestial sphere, but only one half at any one time.Jan 3, 2020
Where on Earth would every star be visible to you?
If you look up at the sky from the North or South Pole, you'll always see the stars going in circles overhead, never rising or setting at the horizon. At the North Pole the stars circle the North Star, which lies exactly where the "skewer" is pointing. If you went to the equator you'd see something quite different.Apr 3, 2017
Can you see the entire sky from the equator?
From the equator, as the year goes along, you can see the entire celestial sphere, but only one half at any one time.Jan 3, 2020
Is there any place on Earth where you could see the north celestial pole on the western horizon?
If you were standing on the equator, you would be able to see the north celestial pole on the north horizon. If you are anywhere on the north hemisphere, you can see the north celestial pole. However, if you are on the west celestial pole, the north it can never be seen because it always lies to the north.
Are all visible stars in our galaxy?
All the stars we see in the night sky are in our own Milky Way Galaxy. Our galaxy is called the Milky Way because it appears as a milky band of light in the sky when you see it in a really dark area.
Can the North Star be seen from anywhere on Earth?
If you go as far north as the North Pole, you'll see Polaris directly overhead. As you travel south, Polaris drops closer to the northern horizon. If you get as far as the equator, Polaris sinks to the horizon. South of the equator, Polaris drops out of the sky.May 21, 2019
How can you identify stars in the sky?
Look for one with a good star locator so your can identify different stars. Stargazing apps range from basic star charts to programs that map the entire sky when you hold the phone up. Pick one that has features you want. If they're free, try downloading a few and see which you like best.
What happens when the Earth rotates?
When earth rotates about its axis in a day and revolves about the Sun, the part of sky changes that can be seen. Stars visible in the North Pole will not be visible in the South Pole. Celestial sphere is an imaginary sphere centered around the earth on which all the celestial bodies are projected.
Can you see the sky from the North Pole?
From the North Pole, only half the sky is visible. Suppose a man is standing at the north pole. He would be able to see everything in northern celestial hemisphere, but he would not be able to see anything in southern celestial hemisphere.
What happens to the sky when the Earth rotates?
When earth rotates, the part of sky one observes changes (except if you are on the poles), because on poles our sky will appear to rotate around a point exactly above the pole, so one could not expect to see new stars in whole year. Stars visible in North Pole will not be visible in South Pole. At any point on earth, only ...
Is the sky visible at any point on Earth?
At any point on earth, only of total sky is visible; imagine sky as a large ‘bowl’ above one’s head (which is half of entire sphere around the earth)
Where on Earth could you observe all of the stars during the course of a year?
From where on Earth could you observe all of the stars during the course of a year? What fraction of the sky can be seen from the North Pole? You can observe all of the stars from the equator over the course of a year, although high-declination stars will be difficult to see so close to the horizon.
What were Galileo's discoveries that were important to astronomy?
What were four of Galileo's discoveries that were important to astronomy. Galileo's observation of phases of Venus. Observations of Jupiter's moons, the features on the surface of the Moon. And discovery that the Milky Way is simply a mass of unresolved stars.
What is the difference between heliocentric and geocentric Mars?
Heliocentric model: Mars moves slower than Earth. When Earth passes Mars, Mars seems to look like it's going backwards.
What is the ecliptic of the Sun?
Ecliptic is the Sun's apparent annual path in the sky and the celestial equator is the projection of Earth's equator onto the sky
How long does it take for the Moon to return to its original position?
The sun moves about 1 degree per day. The moon takes 30 days to return to its original position relative to the fixed stars.
Why does the moon have a round shape?
The shadow cast on the moon is always a round shape. When ships sail away on the ocean they appear to sink because of the curvature of Earth's surface. Orbiting satellites taking photographs of Earth shows it round on every direction. The Sun is at different altitudes in the sky for different longitudes.
Where did the magnitude designation come from?
the origin of the magnitude designation was with Hipparchus. The brightest stars were "first magnitude", fainter stars are the "second magnitude", the fainter being "third magnitude".
Which model was largely correct to place the Sun at the center of all planetary motion?
Although the Copernican system was largely correct to place the Sun at the center of all planetary motion, the model still gave inaccurate predictions for planetary positions. Explain the flaw in the Copernican model that hindered its accuracy. Copernicus assumed all motion must be uniform circular motion.
Which two scientists believed that the Earth revolves around the Sun?
Copernicus and Galileo believed that Earth spins on its axis and revolves around the Sun as one of the planets, both contradicting the idea that Earth is motionless at the center of the solar system. In addition, Galileo thought that the best way to understand nature is through experiments, rather than just pure thought, as the ancient Greeks did. Galileo also had a telescope with which to examine the heavens, which the ancient Greeks did not have.
How does Mars move?
In the geocentric model, Mars orbits outside of the Sun on its deferent path, but it also moves in a circular motion on its epicycle as it follows the deferent. If the planet moves faster "backward" on the epicycle than it moves forward on the deferent, then it can appear to move in a retrograde manner while still retaining the overall pattern of prograde motion in the sky. In the heliocentric model, Mars moves somewhat slower than Earth. During periods of time when Earth passes Mars, Mars appears to move backward on the sky relative to the background stars. This is confirmed by the fact that Mars appears at its brightest during this motion (due to it being at its closest approach to Earth) and is also on the opposite side of the sky from the Sun during retrograde motion.
Why does the ISS keep falling around the Earth?
Since friction with Earth's atmosphere slows down the ISS, it requires occasional upward pushes , or boosts, to stay in orbit. Compare the density, weight, mass, and volume of a pound of gold to a pound of iron on the surface of Earth.
How long does it take for the Sun to return to its original location?
The Sun moves about 1° per day. It takes about 360 days (actually 365.25 days) to return to its original location.
What is the name of the star in Ursa Minor?
Ursa Minor contains the pole star, Polaris, and the asterism known as the Little Dipper. From most locations in the Northern Hemisphere, all of the stars in Ursa Minor are circumpolar. Does that mean these stars are also above the horizon during the day? Explain
Why does Venus only have crescent phases?
Venus would only show crescent phases because the illuminated side would only ever partially be visible from Earth.
Which planets orbit the Sun?
Earth rotates. Venus and Mercury orbit the Sun.
What are the orbital paths of the planets?
1. The orbital paths of the planets are elliptical, with the Sun at one focus. Eccentricity. Major axis and semi-major axis.
What does more light mean in a telescope?
The more light a telescope can take in, the better and more precise the resolution will be .
What are the outer planets?
Outer: Jupiter, Saturn, Uranus, Neptune. Gas and Ice giants. Hydrogen and helium. Less density. Made of the same stuff the sun is made of.
What would happen if the Earth had no tilt?
If the Earth had no tilt and the rotational axis was exactly perpendicular to the orbital plane, the Earth would have NO seasons at all.
Which series has the longest transition?
The Lyman series because it has the longest transition.
Can you see all the stars during the year?
Yes, there is such a place. You can observe all of the stars during the course of the year from anywhere on the Equator.
Which philosopher observed that only 50% of the stars are visible at one time?
III. Aristotle observed that only 50% of the stars are visible at one time thus concurring that the Earth is round because if not we would all see the same stars 100% of the time.
Why are circumpolar stars always visible?
Circumpolar stars are above the horizon during the day and can always be seen because they always circle or orbit the north pole star
What is the name of the star in Ursa Minor?
Ursa Minor contains the pole star, Polaris, and the asterism known as the Little Dipper. From most locations in the Northern Hemisphere, all of the stars in Ursa Minor are circumpolar. Does that mean these stars are also above the horizon during the day? Explain.
How long does it take for the Moon to return to its original location?
Takes moon to return to its original location approximately 27.3 days
What did C/G think about the Earth?
C/G thought that the Earth orbited the Sun (HELIO) , Everyone else thought that the planets and the Sun orbited the earth(GEO).
How many degrees does the Sun move around the Earth in a year?
Sun moves around earth in sky 1 a year. 360/365 so about 1 degree per day
What percentage of the sky is visible from the North Pole?
Half 50% of the (north of equator) sky can be observed from the North Pole.
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