QuestionFebruary 1, 2026

Which unit would be most useful for describing the distance to a galaxy cluster located from Earth? Light-years Astronomical units Parsecs Kllometers

Which unit would be most useful for describing the distance to a galaxy cluster located from Earth? Light-years Astronomical units Parsecs Kllometers
Which unit would be most useful for describing the distance to a galaxy cluster located from Earth?
Light-years
Astronomical units
Parsecs
Kllometers

Solution
4.3(304 votes)

Answer

Parsecs Explanation 1. Identify the scale of galaxy cluster distances Galaxy clusters are millions to billions of light-years away. 2. Compare units for astronomical distances Light-years and parsecs are suitable for such vast distances; astronomical units and kilometers are too small. 3. Select the most widely used unit in astronomy for extragalactic distances Parsecs (and its multiples, like megaparsecs) are standard for describing distances between galaxies and clusters.

Explanation

1. Identify the scale of galaxy cluster distances<br /> Galaxy clusters are millions to billions of light-years away.<br />2. Compare units for astronomical distances<br /> Light-years and parsecs are suitable for such vast distances; astronomical units and kilometers are too small.<br />3. Select the most widely used unit in astronomy for extragalactic distances<br /> Parsecs (and its multiples, like megaparsecs) are standard for describing distances between galaxies and clusters.
Click to rate:

Similar Questions