Which of these is a term for measuring distance in space?

Answer 1

Relatively nearby objects can be ranged by observation of occultations of known stars or of planets. Otherwise, the technique called parallax is used to find their distance from Earth over a period of time, which may be compared to yield an approximation of their actual distances from each other. Many of the visible stars are not close at all to stars in the same constellation -- they are just on the same line of sight as seen from Earth.

Answer 2

the speed of light is a constant when in a vacuum, meaning that light travels a certain distance in a certain amount of time and that distance will never change as long as the time given to travel is the same, so light can be used as a measuring stick in the (vacuum) of space by saying it took light this amount of time to get here so how far must it have traveled to make it take that long.

Answer 3

This can vary a little depending on how far your are measuring, or what method.

The two most common ones are "light year" or "parsec"

A Light year is the distance light travels in one year, roughly 6 trillion miles. One will often see this expressed as "Mega" or "giga" light years to express 1 million or 1 billion light years.

A Parsec is 3.26 light years, a convention adopted to make some of the early math in astronomy easier (before we had calculators). It is generally outdated in modern use, but it is still used occasionally.

Answer 4

lightyears (distance light travels in a year) and astronomical units, A.U., the distance from earth to the sun

Answer 5

Its light years.

hope i helped

Tomboy6350

+++ Yes - also the Parsec and the Astronomical Unit.

Answer 6

Astronomical units (the distance from the earth to the sun=1AU)

Answer 7

That depends, what do you want to measure about them? Depending on whether you want to measure their diameter, color, brightness, mass, etc., different units will be used.

Answer 8

Astronomical unit (AU) is a term used to measure distance in space. It is typically used to describe distances within our solar system.

Answer 9

light-year(: