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Why is it necessary to have a long base line when using triangulation to measure the distances to objects in space?
Wiki User
∙ 15y ago
The reason is because those objects are so very far away (if outside our solar system). The longest possible (reasonable) baseline is about 16 light minutes. That is earth's half year separation. The next nearest star to our own is about 4.5 light years away. That is about 2.4 million light minutes. 16/2400000 is quite small, so the angle measurements have to be extremely precise to gauge the actual distance. For stars more than a hundred light years away the angles are so tiny that the slightest measurement error yields useless results.
Wiki User
∙ 15y ago
Anonymous
im not sure
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What is a unit used to measure the large distances between objects in our solar system?
The Astronomical unit is used to measure the large distances in our solar system. It is roughly the average distance between the Earth and the Sun.
What can be measured with kilometer?
DistanceKilometers can be used to measure length or linear distance.Generally anything over 1,000 metres and less than an AU - eg Roads.
The change in focal length of an eye lens to focus the image of objects at varying distances is done by the action of?
accommodation
What tool do you use to measure kilometer?
Any ruler that has a division in centimeters. For somewhat longer distances you measure in meters. To know how long that is, take a piece of rope between your fingertips and measure the distance from the tip of those fingers to the outside edge of your other shoulder. If you're about 12 years or older, that distance is a meter.
What device is appropriate in measuring spherical objects?
calipers can measure its diameter and check for roundness. Water displacement can measure its volume.
What objects can you measure with a meter?
Doors, long items and far distances.
What is triangulation and parallax?
Parallax is when objects seem to be in a different place, depending on the angle at which they are viewed. An example would be if you block an object in your visual field with one finger, then close your dominant eye. The object will appear to have moved. Triangulation, used in the context of mathematics and astronomy, is when you determine an unknown distance based on 2 or more known distances.
What is the instrument used to determine how long how wide?
At its simplest, a Rule or a Tape-Measure. For small objects to high accuracy, a Micrometer or a Caliper (the latter either Vernier or digital). For longer distances now, often laser-based or acoustic echo-location devices. For determining distances in three dimensions by triangulation, a Theodolite, the modern ones using laser range-finders. You didn't say what you are measuring so take your pick!
What is the unit used to measure the large distances between objects in your solar system?
it is light years. And miles are to short.
What customary unit of measure would you use to measure distance?
Depends on the context. Inter city distances in kilometres, distances around the house or garden in metres, smaller objects in centimetres. Scientists or specialists would meause interstellar distances in light years or parsecs, accurate measures of day-to-day objects in millimetres, wavelenth of electromagnetic radiation in nanometres, etc.
True or false Triangulation is the preferred method of calculation for all astronomical distances?
That statement is both true and false.Sure, triangulation is the preferred method, if it works. But for anythingmore distant than a few hundred of the nearest stars, triangulation fails,so we're forced to find other ways of measuring farther objects.And by the way ... triangulation is a method of measurement, not calculation.
What is a unit used to measure the large distances between objects in our solar system?
The Astronomical unit is used to measure the large distances in our solar system. It is roughly the average distance between the Earth and the Sun.
What is used to measure distance between objects in the solar system?
The unit used is the astronomical unit, defined as the semimajor axis (mean radius) of the Earth's orbit. The distances are scaled according to Kepler's laws of planetary motion. The fundamental distance is the distance to Venus on a close approach, which was measured accurately by triangulation from two points on the Earth's surface during a transit.
How do you determine the position of objects in space?
An objects position is determined by three measurements from a known point (origin based), or individual measurements from three known points (triangulation).
Reflex objects in clock shows?
For small distances and narrow objects. The reflex sensor, however, is used for a wide range of distances as well as for.
In which system(s) are the distances between the objects the largest compared to the size of the objects?
Planets and stars
Why do you measure objects?
To know the mass of objects
