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Is it true The horizon is the point where to an observer the earth and sky appear to meet?
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What is the name for the boundary around a black hole beyond which events cannot affect the observer?
The "boundary" you're probably thinking of is called the event horizon. Past this point, the escape velocity of the black hole exceeds the speed of light, meaning nothing, including light, can escape it.
What observations could an observer at the Earth's equator make to determine the declination of the Sun?
Since both the Sun and Moon were observed at their respective angles from the ... An observer in the Chaco point would see the Moon at the left of the Sun, and ... 10 degrees from the horizon, then he is about 10 degrees north of the equator.
Would an observer from Earth see all the planets rotate backwards at one point?
Not at the same time, no.
What is the speed of you if you get sucked into a black hole?
When you are near the event horizon, you would be close to the speed of light - from your own point of view. From the point of view of an outside observer, you would move slower and slower, and never quite reach the event horizon. This has to do with the queer distortion of space and time caused by the black hole.
How is the term 'event horizon' defined?
The event horizon is a "point of no return"; anything within the event horizon can't get out, even at the speed of light.An event horizon is the "surface" of a black hole. It is the line that is crossed right where the chaos stops and the actual hole begins. it is theorized that beyond this horizon, all of the laws of physics cease to exist. A single hydrogen atom becomes a billion mega-ton hydrogen bomb. an entire planet fits on the head of a needle, that sort of thing.In general relativity, an event horizon is a boundary in spacetime, most often an area surrounding a black hole, beyond which events cannot affect an outside observer. Light emitted from beyond the horizon can never reach the observer, and anything that passes through the horizon from the observer's side appears to freeze in place, with its image becoming more redshifted as time proceeds.
What is the point to an observer the earth and sky appear to meet?
The horizon.
What is the zenith and how does the definition of the horizon relate to it?
The zenith is the direction directly above the observer. The astronomical horizon is the plane that is perpendicular to that direction, i.e. horizontal. The "true horizon", however, is the cone from the observer to the point on the earth, below which you can not "see over", so it is a small amount lower in angle. In practice, the two horizons can be considered to be the same, because the height of the observer is often small in comparision to the diameter of the earth, unless the observer is standing on a tall point, such as a mountain.
What is a point on the horizon where parallel lines appear to meet?
A point on the horizon where parallel lines appear to meet is called the vanishing point.
Definition of horizon lines in reference to perspective drawing?
The point at which horizon lines receding from an observer seem to converge.
What is the angular distance around the horizon from some reference point?
If the reference point and an object are both on the horizon then the angular distance to the object, relative to the reference point is simply the angle formed between the two rays from the observer to object and to the reference point. If either the object or reference point (or both) are not in the plane of the horizon then the appropriate rays are the projections of the rays from the observer onto the plane containing the horizon.
What is the line in the sky from horizon to horizon?
If you're talking about sky as in sky on this planet, then your answer would be the horizon (the point were the ground meets the sky from any vantage point on the surface). Or you could be talking about the atmosphere, which is the boundary between the earth and space and keeps life alive, and air on earth.
What is the importance of the horizon?
The horizon is point at which the earth curves away from our line of sight at the earth's surface.
What is an accidental point?
An accidental point is a point on the horizon at which two parallel lines appear to meet.
What is a place where earth and sky seem to meet called?
A horizon and one can be seen from every point on Earth.
What is the name for the boundary around a black hole beyond which events cannot affect the observer?
The "boundary" you're probably thinking of is called the event horizon. Past this point, the escape velocity of the black hole exceeds the speed of light, meaning nothing, including light, can escape it.
What is the point where an azmith originates?
Azimuth is the direction of a celestial object from the observer. The observer is usually located somewhere on the Earth's surface.
What is the point from where an azmith originates?
Azimuth is the direction of a celestial object from the observer. The observer is usually located somewhere on the Earth's surface.
