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What is the angular distance around the horizon from some reference point?
Wiki User
∙ 6y ago
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.
Wiki User
∙ 6y ago
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Where can I go to see the curve of the earth?
You need to get to a sufficiently high altitude or distance from the Earth to being to see the curvature. A minimum heihgt of around 60 to 70,000 ft is required to be able the see the curvature of the horizon.
Is that distance around the circle?
The distance around a circle is its circumference.
What does the slope on a distance versus time graph show?
It shows the speed of an object in a direction towards or away from the reference point. This is not the speed of the object because any motion in a transverse direction is ignored. For example, even if a racing car is going at top speed around the reference point on a circular track, the distance v time graph will be a horizontal line. The slope will be zero.
Is circumference the distance around the circle?
Yes. Circumference is the distance around the circle, diameter is the distance across, and radius is the distance from the edge to the center.
What is the distance around the globe?
the distance around the globe at the equator is 40075 km.
What is the angular distance between Quito in Ecuador and Macapa in Brazil?
Around 773.55 miles
Why does the angular distance from the moon change during each phase cycle?
because the moon is rotaing around earth
What is the difference between orbital velocity and angular velocity?
Orbital Velocity is calculated in m/s where as angular velocity is calculated in rad/s.. Answer is very clear.. angular velocity is calculated when body is rotating around a axis and a reference point is needed to calculate it.. where as orbital velocity is calculated when body is moving around a bado in circular path, nt around itself... e.g. Earth rotates around so it have angular velocity .. it also rotates around sun in orbit so it has Orbital velocity also :)
Distance around the horizon of a star?
It depends on the star some star sizes are bigger and some are smaller. the sun is 2,713,406 miles around. the sun is a average star.
How will a constellation move across the sky if you are standing at the north pole?
They will move horizontally, always maintaining the same distance from the horizon.
What distance are lines of longitude used to know?
None. The distances between the lines of longitude are a meaningless concept. These lines measure angular distance around the world around the equator. Each degree of longitude is approx 111 km at the equator and 0 km at the poles.
What is an angular velocity?
An angular velocity is the angle turned in a given time by a body rotating around an axis.
What is an angular momentum?
An angular momentum is the vector product which describes the rotary inertia of a system around its axis and is conserved in a closed system.
What has angular momentum?
Anything that's spinning, rotating, tumbling, or traveling in a closed path around something else, has angular momentum.
What is the difference between radio horizon and optical horizon?
radio signal bents around the curvature of earth and hence travel longer distance than the line of sight signal. At ultra high frequencies signal follows the line of sight path and hence maximum communication distance is limited due to curvature of earth for given height of transmitting and receiving antenna
Does it get darker than astronomical twilight at night in any part of Denmark around the June solstice?
No. The southern border of Denmark is at 54 degrees 44 minutes north.Wikipedia sez: "Astronomical twilight is defined to begin in the morning, and to end in the evening when the center of the Sun is geometrically 18 degrees below the horizon."At midnight in the June Solstice, the Sun is at a declination of 23.5 degrees (approximately), so the over-the-pole angular distance is (90-54.5) + (90-23.5) degrees, or 102 degrees. The horizon is 90 degrees, so the Sun is 15 degrees below the northern horizon at midnight on June 21.So, no, it won't meet the definition for "darker than astronomical twilight".
The region around a black hole where no escape is possible is called the?
The distance from a simple black hole's center to the event horizon where escape velocity equals the speed of light is called the Schwarzschild radius, named after the mathematician who solved the relevant field equation from Einstein's theory of General Relativity. The distance can be calculated for a known mass using twice the product of the gravitational constant and the mass, divided by the square of the speed of light.
