Proud to be part of LJMU,
in partnership with the Dill Faulkes Educational Trust

 

X

Distance

Distance

Measuring distances in astronomy is difficult but crucial. We need to know how far away objects are to look at the differences between them. Two objects can look different but be very similar, with one further away than the other. This can make them challenging to study.

An image of the night sky showing the constellation Orion, with the Orion Belt stars circled in blue for emphasis
This work by Mouser is licensed under GNU General Public License v2.0 or later
Orion's belt

Measurement

In astronomy, measuring helps us learn the size, distance, and brightness of things in space.

Without these measurements, it would be hard to compare stars, planets, and galaxies.

Illustration with the title 'Measurement' showing various tools and symbols associated with measuring, including a ruler, protractor, balance scale, telescope, and electronic measuring device, set against a starry background with a galaxy image
This work by The Schools' Observatory is licensed under All rights reserved