• Question: Why are some stars bright and other dim?

    Asked by anon-335301 on 5 Oct 2022.
    • Photo: Jack Reid

      Jack Reid answered on 5 Oct 2022:

      Different stars are often of different types. Some, like our Sun (G-type), are medium-sized and yellow. Others are much larger and strongly red. Some are small, and blue-ish. As well as different sizes, they are at different distances. Proxima centauri is the nearest to the Sun, and some are billions of light years away. As a result, some seem brighter, and others dimmer.