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Why do all celestial objects in space not lie on the celestial sphere?
Celestial objects that lie outside a certain distance from Earth, such as distant galaxies, do not appear to lie on the celestial sphere due to their three-dimensional positions in space. The celestial sphere is a theoretical construct that represents the sky as seen from Earth, and objects beyond a certain distance would have different apparent positions when viewed from different vantage points in the universe.
Would light year be useful in a model of the solar system?
Yes, a light year would be useful in a model of the solar system to represent distances between celestial objects, as it is a unit of measurement that denotes the distance light travels in a year. This can help convey the vast scales and distances involved in the solar system.
What is the attractive force that exists between all objects?
Gravity is the attractive force that exists between all objects with mass. It is responsible for pulling objects towards each other and keeping planets in orbit around stars.
What is the angular tilt between the ecliptic and the celestial equator?
About 23.5 degrees.The celestial equator and the ecliptic are two "great circles" on the sky coordinate system.Think of them as two hoops of the same size, hinged together at two points (well the hinged points do move but very slowly taking about 26 000 years to move around and come back to the same place again). If you hold onesteady and spin the other one inside it, they stay connected at the two hinges, but they canbe set at any angle to each other.Now put them in the sky. Place the steady one right above the equator all the way around, and tiltthe movable one on the hinges so that it makes an angle of 23.5 degrees with the steady one.The steady one, above the earth's equator all the way around, is the celestial equator. The movable one,tilted 23.5 degrees to the equator, is the ecliptic ... the path that the sun appears to travel in the sky,once around in a year. The hinges ... where the ecliptic crosses the equator ... are the points where thesun is located at the time of the two equinoxes. Halfway between the hinges are the points where thetwo circles are farthest apart ... one where the ecliptic is farthest above the equator, the other whereit's farthest below. Those are the points where the sun is located at the time of the two solstices.
If you looked at the galaxy what would you see?
If you looked at the galaxy from Earth, you would see a band of stars and other celestial objects known as the Milky Way. This is our galaxy as seen from within. If you viewed another galaxy from afar, you might see a collection of stars, dust, and gases swirling together in a vast, cosmic structure.
What two objects would experience the greatest gravitational force between them?
Two objects with the greatest gravitational force between them would be those with the highest masses and closest proximity. This would usually involve large celestial bodies like planets or stars that are orbiting each other or in very close proximity.
Why do all celestial objects in space not lie on the celestial sphere?
Celestial objects that lie outside a certain distance from Earth, such as distant galaxies, do not appear to lie on the celestial sphere due to their three-dimensional positions in space. The celestial sphere is a theoretical construct that represents the sky as seen from Earth, and objects beyond a certain distance would have different apparent positions when viewed from different vantage points in the universe.
What is in space if space isn't there?
Space is the vast expanse that exists between objects in the universe. It is not defined by physical matter or objects but rather as the area where these objects exist. If space were not there, there would be no distance between celestial bodies, and the universe would be a singular point with no separation between objects.
Distinguish between a celestial object and the universe?
When seen from some other part of our galaxy (which WE have named The Milky Way) our solar system would appear to be a celestial system. Any star with surrounding stars or planets is considered to be a "celestial system". Even this or other galaxies are considered to be "celestial systems".
What would be the greatest force of gravitational attraction?
The force of gravitational attraction between two objects is strongest when their masses are large and they are very close together. For example, a planet and a star or two massive celestial bodies would experience a strong gravitational attraction between them.
Where would the earth be located in a model of celestial sphere?
The celestial sphere has the Earth at the centre and all the objects in the sky situated on the sphere at infinite distance. Positions of the objects are described by two coordinates, which could be azimuth and elevation, or, in geocentric coordinates, declination and hour-angle.
What celestial events?
The word celestial comes from the same roots as heavens (or sometimes sky); usually a celestial event would usually be considered to be something that takes place beyond the earth's atmosphere. A celestial event might be something like an eclipse or occultation, a star going nova, a planetary transition, etc.
Which factor would increase the strength of an electric field between 2 objects?
Decreasing the distance between the objects or increasing the charge of the objects would increase the strength of the electric field between them.
What is the relationship between the celestial sphere and the local sky?
In this context the celestial sphere could be considered the background of stars, planets, comets, etc., such as is visible on a clear night, as distinct from the local sky would include Earth's atmosphere and weather effects such as an observer is largely limited to during the day (with the exception of the closest star, our Sun). It's safe to say these are relatively independent - objects in the sky such as meteorological phenomena, artificial satellites, etc., would move and act independent of the celestial sphere. Remembering that Earth is a planet in space moving in an orbit (revolving around its primary) and also rotating on its axis - because of which, the celestial sphere would seem to spin over the course of 24 hours, and also change throughout the year with respect to objects inside the solar system because of its position in orbit.
The intersection points between the ecliptic and the celestial equator are called?
Those would be the "equinoxes".
What is the imaginary sphere on which all objects in the sky seem to be located?
The imaginary sphere is called the celestial sphere. It is used in astronomy to track the apparent movements of celestial objects as if they were projected onto the inside of a sphere surrounding the Earth.
What would you expect increase the gravitational force between two objects?
Increasing the mass of the objects or decreasing the distance between them would increase the gravitational force between two objects. The gravitational force is directly proportional to the product of the masses and inversely proportional to the square of the distance between the objects.
